Our square root calculator approximates the square source of any positive number girlfriend want. Just go into the liked number and also read the results. Everything is calculation quickly and also automatically! through this tool, you can additionally estimate the square that the wanted number (just get in the value into the second field) which may be a great help in finding perfect squares native the square source formula.Are friend struggling with the simple arithmetic operations: adding square roots, individually square roots, multiplying square roots or splitting square roots? Not any kind of more! In the following text, you will find a detailed explanation about different square root properties, e.g., just how to simplify square roots, with countless various examples given. With this article, you will discover once and for all how to find square roots!
Have you ever wondered what is the origin of the square root symbol √? We have the right to assure you that this history is no as straightforward as you could think at first. The origin of the root symbol goes earlier to ancient times, together the origin of the percent sign.
You are watching: What is the square root of 4 x 16
If you're in search of the square root graph or square root function properties, head straight to the ideal section (just click the links above!). There, we define what is the derivative that a square root using a basic square source definition; we likewise elaborate on just how to calculate square root of index number or square roots of fractions. Finally, if you room persistent enough, you will discover out the square source of a an adverse number is, in fact, possible. In that way, we present complex numbers i m sorry find large applications in physics and also mathematics.
Square root symbol √
The procedure of the square root of a number was already known in antiquity. The faster clay tablet computer with the correct value of up to 5 decimal places of √2 = 1.41421 comes from Babylonia (1800 BC - 1600 BC). Numerous other documents present that square root were likewise used through the ancient Egyptians, Indians, Greeks, and also Chinese. However, the origin of the source symbol √ is still greatly speculative.many scholars think that square root originate indigenous the letter "r" - the very first letter the the Latin native radix an interpretation root,another theory claims that square source symbol to be taken from the Arabic letter ج that was put in the original type of ﺟ in words جذر - source (the Arabic language is written from appropriate to left).
The very first use the the square root symbol √ didn't include the horizontal "bar" over the numbers inside the square root (or radical) symbol, √‾. The "bar" is recognized as a vinculum in Latin, an interpretation bond. Return the radical symbol v vinculum is now in day-to-day use, we generally omit this overline in the countless texts, choose in write-ups on the internet. The notation of the higher degrees the a root has been suggested by Albert Girard who put the degree index in ~ the opening of the radical sign, e.g., ³√ or ⁴√.
The last inquiry is why is the square source operation referred to as root nevertheless of that true origin? The explanation need to become more evident if we create the equation x = ⁿ√a in a various form: xⁿ = a. X is referred to as a root or radical because it is the covert base of a. Thus, the word radical doesn't average far-reaching or extreme, but instead foundational, getting to the root cause.
Square source definition
In mathematics, the traditional operations on numbers are addition, subtraction, multiplication, and also division. Nonetheless, we sometimes add to this perform some more advanced operations and also manipulations: square roots, exponentiation, logarithmic functions and even trigonometric functions (e.g., sine and cosine). In this article, us will emphasis on the square root meaning only.
The square source of a offered number x is every number y who square y² = y*y returns the original number x. Therefore, the square root formula have the right to be express as:
√x = y ⟺ x = y²,
where ⟺ is a mathematical price that means if and only if. Each positive real number always has two square roots - the first is positive and second is negative. However, for plenty of practical purposes, we commonly use the positive one. The only number that has actually one square source is zero. The is due to the fact that √0 = 0 and also zero is neither positive nor negative.
There is additionally another common notation that square roots that might be more convenient in many complex calculations. This different square root formula claims that the square source of a number is a number increased to the exponent of the portion one half:
√x = x^(1/2) = x^(0.5)
In geometric interpretation, the square root of a given area that a square offers the size of that side. That's why √ has word square in that is name. A similar situation is v the cube source ∛. If you take it the cube source of the volume that a cube, you acquire the length of that is edges. If square root are provided when considering surface areas, cube root are helpful to identify quantities the relate to the volume, e.g., density.
How to uncover the square root?
Maybe us aren't being an extremely modest, yet we think the the finest answer come the question exactly how to discover the square source is straightforward: use the square root calculator! You deserve to use the both on your computer and your smartphone to quickly estimate the square root of a offered number. Unfortunately, there room sometimes instances when you deserve to rely only on yourself, what then? come prepare for this, you have to remember several an easy perfect square roots:square source of 1: √1 = 1, since 1 * 1 = 1;square root of 4: √4 = 2, since 2 * 2 = 4;square root of 9: √9 = 3, because 3 * 3 = 9;square source of 16: √16 = 4, since 4 * 4 = 16;square source of 25: √25 = 5, since 5 * 5 = 25;square root of 36: √36 = 6, due to the fact that 6 * 6 = 36;square source of 49: √49 = 7, since 7 * 7 = 49;square root of 64: √64 = 8, because 8 * 8 = 64;square root of 81: √81 = 9, because 9 * 9 = 81;square source of 100: √100 = 10, because 10 * 10 = 100;square root of 121: √121 = 11, because 11 * 11 = 121;square root of 144: √144 = 12, due to the fact that 12 * 12 = 144;
The above numbers are the easiest square roots because every time you attain an integer. Try to psychic them! but what deserve to you do when there is a number that doesn't have such a pretty square root? There room multiple solutions. First of all, girlfriend can try to predict the result by trial and also error. Let's say that you desire to estimate the square source of 52:You know that √49 = 7 and √64 = 8 for this reason √52 need to be in between 7 and 8.Number 52 is closer to the 49 (effectively closer to the 7) so girlfriend can try guessing that √52 is 7.3.Then, friend square 7.3 obtaining 7.3² = 53.29 (as the square source formula says) i beg your pardon is greater than 52. You have to try with a smaller number, let's speak 7.2.The square of 7.2 is 51.84. Currently you have actually a smaller number, however much closer come the 52. If the accuracy satisfies you, you can finish estimations here. Otherwise, you deserve to repeat the procedure with a number chosen in between 7.2 and 7.3,e.g., 7.22 and also so on and so forth.
Another strategy is come simplify the square root very first and then usage the approximations the the element numbers square roots (typically rounded to two decimal places):square source of 2: √2 ≈ 1.41,square source of 3: √3 ≈ 1.73,square root of 5: √5 ≈ 2.24,square source of 7: √7 ≈ 2.65,square source of 11: √11 ≈ 3.32,square source of 13: √13 ≈ 3.61,square source of 17: √17 ≈ 4.12,square source of 19: √19 ≈ 4.34, etc.
Let's shot and find the square source of 52 again. You deserve to simplify it come √52 = 2√13 (you will learn exactly how to leveling square source in the following section) and then instead of √13 ≈ 3.61. Finally, make a multiplication √52 ≈ 2 * 3.61 = 7.22. The an outcome is the very same as before!
You can examine whether a number is prime or not v our element number calculator. A element number is a natural number (greater than one) that can't be obtained as a product of 2 smaller organic numbers. Because that example, 7 is a element number due to the fact that you can acquire it just by multiply 1 * 7 or 7 * 1. ~ above the other hand, number 8 is not prime, since you can kind it by multiply 2 * 4 or 4 * 2 (besides product of 1 and 8 itself).
Square root calculator
In some situations, girlfriend don't require to understand the exact result of the square root. If this is the case, our square root calculator is the best option to estimate the worth of every square root you desired. For example, let's speak you desire to recognize whether 4√5 is higher than 9. Native the calculator, you recognize that √5 ≈ 2.23607, for this reason 4√5 ≈ 4 * 2.23607 = 8.94428. The is an extremely close come the 9, yet it isn't higher than it! The square root calculator provides the final value with relatively high accuracy (to five digits in above example). Through the far-ranging figure calculator, you have the right to calculate this result to as many far-reaching figures as you want.
Remember the our calculator immediately recalculates numbers gone into into one of two people of the fields. Friend can find what is the square root of a specific number by pour it until it is full the very first window or obtain the square that a number the you gotten in in the second window. The second option is comfortable in finding perfect squares that are essential in many facets of math and also science. For example, if you enter 17 in the second field, you will discover out the 289 is a perfect square.
In part applications the the square root, specifically those pertaining to sciences such together chemistry and physics, the results are preferred in scientific notation. In brief, response in scientific notation must have a decimal allude between the very first two non-zero numbers and will be represented as the decimal multiplied by 10 raised to one exponent. Because that example, the number 0.00345 is composed as 3.45 * 10⁻³ in scientific notation, vice versa, 145.67 is composed as 1.4567 * 10² in scientific notation. The results obtained using the square source calculator deserve to be converted to clinical notation v the scientific notation calculator.
How to leveling square roots?
First, let's questioning ourselves which square roots deserve to be simplified. Come answer it, you need to take the number i m sorry is after the square source symbol and also find that is factors. If any kind of of its components are square number (4, 9, 16, 25, 36, 49, 64 and also so on), climate you have the right to simplify the square root. Why are these number square? They have the right to be respectively expressed as 2², 3², 4², 5², 6², 7² and so on. Follow to the square root definition, friend can call them perfect squares. We've got a unique tool dubbed the variable calculator which can be very handy here. Let's take a watch at part examples:can you leveling √27? v the calculator pointed out above, you obtain factors the 27: 1, 3, 9, 27. Over there is 9 here! This method you deserve to simplify √27.can you simplify √15? components of 15 space 1, 3, 5, 15. There space no perfect squares in those numbers, so this square root can't it is in simplified.
So, exactly how to leveling square roots? To explain that, we will use a handy square source property we have talked around earlier, namely, the different square source formula:
√x = x^(1/2)
We deserve to use those two develops of square roots and also switch in between them whenever we want. Particularly, we remember that power of multiplication the two details numbers is tantamount to the multiplication of those details numbers increased to the exact same powers. Therefore, we have the right to write:
(x * y)^(1/2) = x^(1/2) * y^(1/2) ⟺ √(x * y) = √x * √y,
How deserve to you use this knowledge? The dispute of a square root is typically not a perfect square friend can easily calculate, but it might contain a perfect square among its factors. In various other words, you deserve to write it together a multiplication of two numbers, where one of the number is the perfect square, e.g., 45 = 9 * 5 (9 is a perfect square). The necessity of having at the very least one factor that is a perfect square is necessary to leveling the square root. At this point, you must probably understand what the following step will be. You need to put this multiplication under the square root. In our example:
√45 = 45^(1/2) = (9 * 5)^(1/2) = 9^(1/2) * 5^(1/2) = √9 * √5 = 3√5.
You have effectively simplified your an initial square root! the course, girlfriend don't need to write down all this calculations. As long as you remember the square source is equivalent to the power of one half, you have the right to shorten them. Let's practice simplifying square roots through some other examples:How to leveling square source of 27? √27 = √(9 * 3) = √9 * √3 = 3√3;How to leveling square root of 8? √8 = √(4 * 2) = √4 * √2 = 2√2;How to leveling square source of 144? √144 = √(4 * 36) = √4 * √36 = 2 * 6 = 12.
In the last example, you didn't have to simplify the square root at all, because 144 is a perfect square. You might just remember that 12 * 12 = 144. However, we wanted to display you that through the process of simplification, you can conveniently calculate square root of perfect squares too. That is beneficial when dealing with large numbers.
Finally, you might ask how to leveling roots of higher orders, e.g., cube roots. In fact, the procedure is really analogical come the square roots, yet in the situation of cube roots, you have to uncover at the very least one element that is a perfect cube, not a perfect square, i.e., 8 = 2³, 27 = 3³, 64 = 4³, 125 = 5³ and so on. Climate you divide your number right into two parts and put under the cube root. Let's take the following instance of simple ³√192:
∛192 = ∛(64 * 3) = ∛64 * ∛3 = 4∛3
It might seem a small bit complicated at first glance, however after some practice, you will be able to simplify root in your head. To trust us!
Adding, subtracting, multiplying and also dividing square roots
Adding square roots and subtracting square roots
Unfortunately, adding or subtracting square roots room not as easy as adding/subtracting consistent numbers. Because that example, if 2 + 3 = 5, it doesn't typical that √2 + √3 equals √5. That's wrong! To know why is that, imagine that you have two different types of shapes: triangle 🔺 and circles 🔵. What happens once you include one triangle come one circle 🔺 + 🔵? Nothing! you still have actually one triangle and one circle 🔺 + 🔵. On the other hand, what happens once you try to add three triangles to 5 triangles: 3🔺 + 5🔺? You'll we acquire eight triangles 8🔺.
Adding square root is very similar to this. The result of including √2 + √3 is quiet √2 + √3. Girlfriend can't leveling it further. That is a various situation but when both square roots have actually the exact same number under the root symbol. Then we can add them simply as continuous numbers (or triangles). For instance 3√2 + 5√2 equals 8√2. The very same thing is true subtracting square roots. Let's take a look at at an ext examples portraying this square source property:What is 6√17 + 5√17? Answer: 6√17 + 5√17 = 11√17;What is 4√7 - 7√7? Answer: 4√7 - 7√7 = -3√7;What is 2√2 + 3√8? Answer: 2√2 + 3√8 = 2√2 + 6√2 = 8√2, because we simplified √8 = √(4 * 2) = √4 * √2 = 2√2;What is √45 - √20? Answer: √45 - √20 = 3√5 - 2√5 = √5, since we streamlined √45 = √(9 * 5) = √9 * √5 = 3√5 and √20 = √(4 * 5) = √4 * √5 = 2√5;What is 7√13 + 2√22? Answer: 7√13 + 2√22, us can't leveling this further;What is √3 - √18? Answer: √3 - √18 = √3 - 3√2, us can't leveling this more than this, but we at the very least simplified √18 = √(9 * 2) = √9 * √2 = 3√2.
Multiplying square roots and dividing square roots
Now, when including square root is a item of cake for you, let's walk one action further. What about multiplying square roots and dividing square roots? Don't it is in scared! In fact, you currently did it during the class of simple square roots. Multiply square roots is based on the square root home that we have used prior to a couple of times, that is:
√x = x^(1/2)
Do you remember how to main point numbers the are elevated to the very same power? as a reminder:
xⁿ * yⁿ = (x * y)ⁿ,
x^(1/2) * y^(1/2) = (x * y)^(1/2) ⟺ √x * √y = √(x * y).
As opposed to addition, you deserve to multiply every 2 square roots. Remember that multiplication has commutative properties, that method that the order come which two numbers room multiplied does not matter. Few examples must clarify this issue:What is √3 * √2? Answer: √3 * √2 = √6;What is 2√5 * 5√3? Answer: 2√5 * 5√3 = 2 * 5 * √5 * √3 = 10√15, because multiplication is commutative;What is 2√6 * 3√3? Answer: 2√6 * 3√3 = 2 * 3 * √6 * √3 = 6√18 = 18√3, we simplified √18 = √(9 * 2) = √9 * √2 = 3√2.
Dividing square source is nearly the exact same since:
x^(1/2) / y^(1/2) = (x / y)^(1/2) ⟺ √x / √y = √(x / y).
All you must do is to replace multiplication authorize with a division. However, the division is not a commutative operator! You have to calculate the numbers that stand before the square roots and also numbers under the square roots separately. As always, some handy examples:What is √15 / √3? Answer: √15 / √3 = √5;What is 10√6 / 5√2? Answer: 10√6 / 5√2 = (10 / 5) * (√6 / √2) = 2√3;What is 6√2 / 3√5? Answer: 6√2 / 3√5 = (6 / 3) * (√2 / √5) = 2√(2/5) = 2√(0.4), we switched over there from a simple fraction 2/5 to the decimal fraction 2/5 = 4/10 = 0.4.
Square roots of exponents and fractions
Calculating the square source of the exponent or square root of the portion might not be clear because that you. But with the expertise you acquired in the previous section, girlfriend should uncover it easier than you expected! Let's begin with the square root of exponents. In the case, it will certainly be easier for friend to use the alternative type of square root √x = x^(1/2). Perform you mental the power rule? If not, below is a quick reminder:
(x^n)^m = x^(n*m),
where n and m are any real numbers. Now, as soon as you location 1/2 rather of m you'll acquire nothing else but a square root:
√(x^n) = (x^n)^(1/2) = x^(n/2),
and that's just how you discover the square source of an exponent. Speak of exponents, above equation look at very comparable to the conventional normal distribution density function, which is widely offered in statistics.
If you're still no sure about taking square roots of exponents, below are a few examples:square root of 2^4: √(2^4) = (2^4)^(1/2) = 2^(4/2) = 2^2 = 4,square root of 5^3: √(5^3) = (5^3)^(1/2) = 5^(3/2),square root of 4^5: √(4^5) = (4^5)^(1/2) = 4^(5/2) = (2^2)^(5/2) = 2^5 = 32.
As you have the right to see, sometimes it is difficult to get a pretty result like the an initial example. However, in the third example, we confirmed you a little trick v expressing 4 together 2^2. This method can often simplify more facility equations.
What about square root of fractions? take a look in ~ the previous ar where we wrote around dividing square roots. Friend can find there the adhering to relation the should explain everything:
(x / y)^(1/2) ⟺ √x / √y = √(x / y),
where x / y is a fraction. Below you can find some instances of square root of a fraction:square source of 4/9: √(4/9) = √4 / √9 = 2/3,square root of 1/100: √(1/100) = √1 / √100 = 1/10,square source of 1/5: √(1/5) = √1 / √5 = 1/√5 = √5/5.
Leaving root in the denominator is not a very an excellent habit. That's why we removed it in the critical example. We simply multiplied both the numerator and also denominator through the very same number (we can constantly do that, together the number us multiply by equates to 1), in this situation by √5.
Square root role and graph
Functions play a crucial role not just in mathematics yet in countless other areas like physics, statistics, or finance. Function f(x) is nothing an ext than a formula the says just how the worth of f(x) alters with the dispute x. To see some examples, inspect out ours finance tools made by jae won specialists, because that example, the compound interest calculator or future value calculator. You will uncover there some features that friend can use in genuine life. They're a great help if you desire to know just how to calculate the compound interest or to calculation the future worth of an annuity.
Below friend can discover the square source graph, made up of half of a parabola. Inspect it and try to validate, because that example, whether the square root duty of x = 9 is 3 and of x = 16 is 4 (as it have to be).
You probably have currently noticed that the square root of the area of a square provides its side length. This function is supplied in one of our building calculators - square clip calculator. If you arrangement to do any kind of renovation in the future, these tools might be a an excellent help. Don't forget to usage them!
Derivative of the square root
A derivative that a role tells us how fast this role changes with its argument. One of the simplest instances in physics is the position of things and its velocity (the rate of change of position). Let's say that the role x(t) describes how the distance of the moving car from a details point alters with time t. Carry out you know what identify how rapid the adjust is in your street traveled? The price is the speed of the car! for this reason the derivative of the place x(t) is velocity v(t)(velocity deserve to depend on time too). To signify derivative, we normally use apostrophe v(t) = x'(t) or the derivative prize v(t) = dx(t)/dt.
The derivative the the general role f(x) is not always easy to calculate. However, in part circumstances, if the function takes a details form, we've gained some formulas. Because that example, if
f(x) = x^n,
where n is any real number, the derivative is together follows:
f'(x) = n * x^(n-1).
It might not look like, yet this answers the inquiry what is the derivative that a square root. Carry out you remember the alternative (exponential) kind of a square root? Let united state remind you:
√x = x^(1/2).
You can see that in this case n = 1/2, so the derivative that a square root is:
(√x)' = (x^(1/2))' = 1/2 * x^(-1/2) = 1/(2√x).
Since a number to a an unfavorable power is one over that number, the estimate of the derivation will certainly involve fractions. We've gained a tool that might be crucial when adding or subtracting fractions with various denominators. The is referred to as the LCM calculator, and also it speak you just how to discover the Least usual Multiple.
The derivative that a square root is required to obtain the coefficients in the so-called Taylor expansion. Us don't desire to dive right into details also deeply, so, briefly, the Taylor series allows you come approximate various functions v the polynomials that space much much easier to calculate. For example, the Taylor growth of √(1 + x) around the suggest x = 0 is offered by:
√(1 + x) = 1 + 1/2 * x - 1/8 * x² + 1/16 * x³ - 5/128 * x⁴ + ...,
which is valid because that -1 ≤ x ≤ 1. Back the over expression has an infinite number of terms, to acquire the approximate worth you have the right to use just a couple of first terms. Let's shot it! with x = 0.5 and first five terms, friend get:
√(1.5) = 1 + 1/2 * 0.5 - 1/8 * 0.25 + 1/16 * 0.125 - 5/128 * 0.0625,
√(1.5) ≈ 1.2241,
and the genuine value, provided by our calculator, is √(1.5) ≈ 1.2247. Close enough!
That to be a most maths and also equations therefore far. Because that those of you who are persistent enough, we've ready the following section which explains how to calculate the square root of a an adverse number.
Square source of a negative number
At school, you probably have actually been taught that square root of a an adverse number does not exist. This is true as soon as you consider only actual numbers. A lengthy time ago, to perform advanced calculations, mathematicians had actually to present a more general set of numbers - the complex numbers. They have the right to be to express in the following form:
x = a + b*i,
where x is the facility number with the real component a and imaginary part b. What differs between a facility number and a real one is the imagine number i. Here you have some instances of complex numbers: 2 + 3i, 5i, 1.5 + 4i, 2. You may be surprised seeing 2 over there which is a real number. Yes, that is, but it is additionally a complicated number v b = 0. Complex numbers are a generalization the the actual numbers.
So much imaginary number ns is probably still a secret for you. What is it at all? Well, although it might look weird, that is characterized by the adhering to equation:
i = √(-1),
and that's all that you have to calculate the square source of every number, whether it is hopeful or not. Let's check out some examples:square root of -9: √(-9) = √(-1 * 9) = √(-1)√9 = 3i,square root of -13: √(-13) = √(-1 * 13) = √(-1)√13 = i√13,square root of -49: √(-49) = √(-1 * 49) = √(-1)√49 = 7i.
Isn't the simple? This difficulty doesn't arise with the cube root since you can attain the an adverse number by multiplying three of the identical an adverse numbers (which girlfriend can't perform with two an unfavorable numbers). For example:
³√(-64) = ³√<(-4)*(-4)*(-4)> = -4.
That's probably whatever you have to know about square roots. We evaluate that you stayed with us until this point! as a price you have to bake miscellaneous sweet for you yourself :-) inspect out ours perfect pancake calculator to uncover out exactly how to do the perfect pancake, yet you prefer it. You might need our grams to cup calculator to help you through this. It works both ways, i.e., to convert grams to cups and also convert cup to grams. And also if friend ask you yourself "How countless calories have to I eat a day?", visit our comfortable calorie calculator!
Can a number have more than one square root?
Yes, in truth all confident numbers have actually 2 square roots, one the is positive and also another that is equal but negative to the first. This is since if girlfriend multiply two negatives together, the negatives cancel and also the result is positive.
How execute you uncover the square source without a calculator?Make one estimate that the square root. The the next square number is acceptable if you’re at a loss.Divide the number you want to uncover the square root of through the estimate.Add the calculation to the an outcome of step 2.Divide the an outcome of action 3 by 2. This is your brand-new estimate.Repeat actions 2-4 with you new estimate. The much more times this is repeated, the more accurate the an outcome is.
How deserve to I estimate square roots?Find the nearest square number above and below the number you are thinking of.The square root will be between the square root of these numbers.The closeness of the number to a square source indicates just how close the source is. E.g., 26 is an extremely close come 25, for this reason the root will certainly be really close to 5.Try a few times to acquire the cave of it.
Is the square root of 2 a reasonable number?
No, the square source of 2 is no rational. This is due to the fact that when 2 is written as a fraction, 2/1, it can never have actually only also exponents, and therefore a reasonable number cannot have actually been squared to produce it.
How can I get rid of a square root?
In algebra, squaring both sides of the equation will acquire rid of any kind of square roots. The result of this procedure is the the square roots will be replaced with everything number they to be finding the square root of.
Are square roots rational?
Some square roots space rational, whereas others space not. You have the right to work out if a square source is reasonable or not by finding out if the number you are square rooting have the right to be to express in regards to only also exponents (e.g. 4 = 22 / 1 2). If the can, its root is rational.
Is the square root of 5 a reasonable number?
The square root of 5 is not a rational number. This is because 5 can not be expressed together a portion where both the numerator and denominator have even exponents. This means that a rational number cannot have been squared to acquire 5.
Is the square source of 7 a rational number?
The an outcome of square rooting 7 is an irrational number. 7 can not be composed as a portion with only even exponents, an interpretation that the number squared to reach 7 cannot be expressed as a portion of integers, and also therefore is no rational.
What is the derivative the the square root of x?
The derivative of square source x is x-1/2/2, or 1/2SQRT(x). This is because the square root of x can be expressed as x1/2, native which differentiation wake up normally.
How perform you discover the square source of a decimal?Convert the decimal into a fraction.Find any type of square roots of the fraction, or estimate it. Make the fraction equal come the square source you uncovered squared.Cancel the square root and also the square leaving you with the fraction.
See more: How Much Is 40 Out Of 50 As A Percentage ? 50 Is What Percent Of 40
Rewrite the portion as a decimal together your last answer.