Subtract 80/63 from 14/20, Solve 14/20

Subtract 80/63 from 14/20

1^st number: 14/20, 2^nd number: 1 17/63

14/20 - 80/63 is -359/630.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 20 × 63 = 1260,
14/20 = 14 × 63/20 × 63 = 882/1260
Likewise, for the 2nd fraction, since 63 × 20 = 1260,
80/63 = 80 × 20/63 × 20 = 1600/1260
Subtract the two like fractions:
882/1260 - 1600/1260 = 882 - 1600/1260 = -718/1260
After reducing the fraction, the answer is -359/630

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