Subtract 72/56 from 4/12
1st number: 4/12, 2nd number: 1 16/56
4/12 - 72/56 is -20/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
4/12 = 4 × 14/12 × 14 = 56/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
72/56 = 72 × 3/56 × 3 = 216/168 - Subtract the two like fractions:
56/168 - 216/168 = 56 - 216/168 = -160/168 - After reducing the fraction, the answer is -20/21
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