Subtract 70/63 from 5/8, Solve 5/8 - 1 7/63 as a fraction

Subtract 70/63 from 5/8

1^st number: 5/8, 2^nd number: 1 7/63

5/8 - 70/63 is -35/72.

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

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 8 × 63 = 504,
5/8 = 5 × 63/8 × 63 = 315/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
70/63 = 70 × 8/63 × 8 = 560/504
Subtract the two like fractions:
315/504 - 560/504 = 315 - 560/504 = -245/504
After reducing the fraction, the answer is -35/72

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