Subtract 63/14 from 18/60, Solve 18/60

Subtract 63/14 from 18/60

1^st number: 18/60, 2^nd number: 4 7/14

18/60 - 63/14 is -21/5.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 14 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 60 × 7 = 420,
18/60 = 18 × 7/60 × 7 = 126/420
Likewise, for the 2nd fraction, since 14 × 30 = 420,
63/14 = 63 × 30/14 × 30 = 1890/420
Subtract the two like fractions:
126/420 - 1890/420 = 126 - 1890/420 = -1764/420
After reducing the fraction, the answer is -21/5

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