Subtract 24/21 from 7/56
1st number: 7/56, 2nd number: 1 3/21
7/56 - 24/21 is -57/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
7/56 = 7 × 3/56 × 3 = 21/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
24/21 = 24 × 8/21 × 8 = 192/168 - Subtract the two like fractions:
21/168 - 192/168 = 21 - 192/168 = -171/168 - After reducing the fraction, the answer is -57/56
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