Subtract 75/63 from 4/12, Solve 4/12

Subtract 75/63 from 4/12

1^st number: 4/12, 2^nd number: 1 12/63

4/12 - 75/63 is -6/7.

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,
4/12 = 4 × 21/12 × 21 = 84/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
75/63 = 75 × 4/63 × 4 = 300/252
Subtract the two like fractions:
84/252 - 300/252 = 84 - 300/252 = -216/252
After reducing the fraction, the answer is -6/7

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