Subtract 70/63 from 5/12, Solve 5/12

Subtract 70/63 from 5/12

1^st number: 5/12, 2^nd number: 1 7/63

5/12 - 70/63 is -25/36.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 12 × 21 = 252,
5/12 = 5 × 21/12 × 21 = 105/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
70/63 = 70 × 4/63 × 4 = 280/252
Subtract the two like fractions:
105/252 - 280/252 = 105 - 280/252 = -175/252
After reducing the fraction, the answer is -25/36

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