Subtract 30/20 from 5/63, Solve 5/63

Subtract 30/20 from 5/63

1^st number: 5/63, 2^nd number: 1 10/20

5/63 - 30/20 is -179/126.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 63 × 20 = 1260,
5/63 = 5 × 20/63 × 20 = 100/1260
Likewise, for the 2nd fraction, since 20 × 63 = 1260,
30/20 = 30 × 63/20 × 63 = 1890/1260
Subtract the two like fractions:
100/1260 - 1890/1260 = 100 - 1890/1260 = -1790/1260
After reducing the fraction, the answer is -179/126

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