Subtract 21/72 from 49/12, Solve 4 1/12

Subtract 21/72 from 49/12

1^st number: 4 1/12, 2^nd number: 21/72

49/12 - 21/72 is 91/24.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 12 × 6 = 72,
49/12 = 49 × 6/12 × 6 = 294/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72
Subtract the two like fractions:
294/72 - 21/72 = 294 - 21/72 = 273/72
After reducing the fraction, the answer is 91/24
In mixed form: 319/24

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