Subtract 80/63 from 14/12, Solve 1 2/12

Subtract 80/63 from 14/12

1^st number: 1 2/12, 2^nd number: 1 17/63

14/12 - 80/63 is -13/126.

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,
14/12 = 14 × 21/12 × 21 = 294/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
80/63 = 80 × 4/63 × 4 = 320/252
Subtract the two like fractions:
294/252 - 320/252 = 294 - 320/252 = -26/252
After reducing the fraction, the answer is -13/126

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