Subtract 21/84 from 60/54, Solve 1 6/54

Subtract 21/84 from 60/54

1^st number: 1 6/54, 2^nd number: 21/84

60/54 - 21/84 is 31/36.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 84 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 54 × 14 = 756,
60/54 = 60 × 14/54 × 14 = 840/756
Likewise, for the 2nd fraction, since 84 × 9 = 756,
21/84 = 21 × 9/84 × 9 = 189/756
Subtract the two like fractions:
840/756 - 189/756 = 840 - 189/756 = 651/756
After reducing the fraction, the answer is 31/36

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