Solutions by everydaycalculation.com

56 - 17 is 2942.

- Find the least common denominator or LCM of the two denominators:

LCM of 6 and 7 is**42**

Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,

56 = 5 × 76 × 7 = 3542 - Likewise, for the 2nd fraction, since 7 × 6 = 42,

17 = 1 × 67 × 6 = 642 - Subtract the two like fractions:

3542 - 642 = 35 - 642 = 2942

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