Subtract 56/18 from 72/56, Solve 1 16/56

Subtract 56/18 from 72/56

1^st number: 1 16/56, 2^nd number: 3 2/18

72/56 - 56/18 is -115/63.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 56 × 9 = 504,
72/56 = 72 × 9/56 × 9 = 648/504
Likewise, for the 2nd fraction, since 18 × 28 = 504,
56/18 = 56 × 28/18 × 28 = 1568/504
Subtract the two like fractions:
648/504 - 1568/504 = 648 - 1568/504 = -920/504
After reducing the fraction, the answer is -115/63

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