Subtract 10/15 from 81/56, Solve 1 25/56

Subtract 10/15 from 81/56

1^st number: 1 25/56, 2^nd number: 10/15

81/56 - 10/15 is 131/168.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 56 × 15 = 840,
81/56 = 81 × 15/56 × 15 = 1215/840
Likewise, for the 2nd fraction, since 15 × 56 = 840,
10/15 = 10 × 56/15 × 56 = 560/840
Subtract the two like fractions:
1215/840 - 560/840 = 1215 - 560/840 = 655/840
After reducing the fraction, the answer is 131/168

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