Subtract 63/4 from 36/54, Solve 36/54

Subtract 63/4 from 36/54

1^st number: 36/54, 2^nd number: 15 3/4

36/54 - 63/4 is -181/12.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 4 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 54 × 2 = 108,
36/54 = 36 × 2/54 × 2 = 72/108
Likewise, for the 2nd fraction, since 4 × 27 = 108,
63/4 = 63 × 27/4 × 27 = 1701/108
Subtract the two like fractions:
72/108 - 1701/108 = 72 - 1701/108 = -1629/108
After reducing the fraction, the answer is -181/12

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