Subtract 63/36 from 54/84, Solve 54/84

Subtract 63/36 from 54/84

1^st number: 54/84, 2^nd number: 1 27/36

54/84 - 63/36 is -31/28.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 36 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 84 × 3 = 252,
54/84 = 54 × 3/84 × 3 = 162/252
Likewise, for the 2nd fraction, since 36 × 7 = 252,
63/36 = 63 × 7/36 × 7 = 441/252
Subtract the two like fractions:
162/252 - 441/252 = 162 - 441/252 = -279/252
After reducing the fraction, the answer is -31/28

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