Subtract 27/14 from 21/60, Solve 21/60

Subtract 27/14 from 21/60

1^st number: 21/60, 2^nd number: 1 13/14

21/60 - 27/14 is -221/140.

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,
21/60 = 21 × 7/60 × 7 = 147/420
Likewise, for the 2nd fraction, since 14 × 30 = 420,
27/14 = 27 × 30/14 × 30 = 810/420
Subtract the two like fractions:
147/420 - 810/420 = 147 - 810/420 = -663/420
After reducing the fraction, the answer is -221/140

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