Subtract 63/16 from 12/54, Solve 12/54

Subtract 63/16 from 12/54

1^st number: 12/54, 2^nd number: 3 15/16

12/54 - 63/16 is -535/144.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 16 is 432

Next, find the equivalent fraction of both fractional numbers with denominator 432
For the 1st fraction, since 54 × 8 = 432,
12/54 = 12 × 8/54 × 8 = 96/432
Likewise, for the 2nd fraction, since 16 × 27 = 432,
63/16 = 63 × 27/16 × 27 = 1701/432
Subtract the two like fractions:
96/432 - 1701/432 = 96 - 1701/432 = -1605/432
After reducing the fraction, the answer is -535/144

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