Subtract 15/63 from 1/60, Solve 1/60

Subtract 15/63 from 1/60

1/60 - 15/63 is -31/140.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 60 × 21 = 1260,
1/60 = 1 × 21/60 × 21 = 21/1260
Likewise, for the 2nd fraction, since 63 × 20 = 1260,
15/63 = 15 × 20/63 × 20 = 300/1260
Subtract the two like fractions:
21/1260 - 300/1260 = 21 - 300/1260 = -279/1260
After reducing the fraction, the answer is -31/140

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