Subtract 20/3 from 21/56
1st number: 21/56, 2nd number: 6 2/3
21/56 - 20/3 is -151/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 3 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
21/56 = 21 × 3/56 × 3 = 63/168 - Likewise, for the 2nd fraction, since 3 × 56 = 168,
20/3 = 20 × 56/3 × 56 = 1120/168 - Subtract the two like fractions:
63/168 - 1120/168 = 63 - 1120/168 = -1057/168 - After reducing the fraction, the answer is -151/24
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