Subtract 7/8 from 70/63, Solve 1 7/63

Subtract 7/8 from 70/63

1^st number: 1 7/63, 2^nd number: 7/8

70/63 - 7/8 is 17/72.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 8 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 63 × 8 = 504,
70/63 = 70 × 8/63 × 8 = 560/504
Likewise, for the 2nd fraction, since 8 × 63 = 504,
7/8 = 7 × 63/8 × 63 = 441/504
Subtract the two like fractions:
560/504 - 441/504 = 560 - 441/504 = 119/504
After reducing the fraction, the answer is 17/72

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