Subtract 81/16 from 60/72, Solve 60/72

Subtract 81/16 from 60/72

1^st number: 60/72, 2^nd number: 5 1/16

60/72 - 81/16 is -203/48.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 16 is 144

Next, find the equivalent fraction of both fractional numbers with denominator 144
For the 1st fraction, since 72 × 2 = 144,
60/72 = 60 × 2/72 × 2 = 120/144
Likewise, for the 2nd fraction, since 16 × 9 = 144,
81/16 = 81 × 9/16 × 9 = 729/144
Subtract the two like fractions:
120/144 - 729/144 = 120 - 729/144 = -609/144
After reducing the fraction, the answer is -203/48

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