Subtract 81/56 from 8/63, Solve 8/63

Subtract 81/56 from 8/63

1^st number: 8/63, 2^nd number: 1 25/56

8/63 - 81/56 is -95/72.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 56 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 63 × 8 = 504,
8/63 = 8 × 8/63 × 8 = 64/504
Likewise, for the 2nd fraction, since 56 × 9 = 504,
81/56 = 81 × 9/56 × 9 = 729/504
Subtract the two like fractions:
64/504 - 729/504 = 64 - 729/504 = -665/504
After reducing the fraction, the answer is -95/72

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