Subtract 28/16 from 28/72, Solve 28/72

Subtract 28/16 from 28/72

1^st number: 28/72, 2^nd number: 1 12/16

28/72 - 28/16 is -49/36.

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,
28/72 = 28 × 2/72 × 2 = 56/144
Likewise, for the 2nd fraction, since 16 × 9 = 144,
28/16 = 28 × 9/16 × 9 = 252/144
Subtract the two like fractions:
56/144 - 252/144 = 56 - 252/144 = -196/144
After reducing the fraction, the answer is -49/36

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