Subtract 63/56 from 21/54
1st number: 21/54, 2nd number: 1 7/56
21/54 - 63/56 is -53/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 56 is 1512
Next, find the equivalent fraction of both fractional numbers with denominator 1512 - For the 1st fraction, since 54 × 28 = 1512,
21/54 = 21 × 28/54 × 28 = 588/1512 - Likewise, for the 2nd fraction, since 56 × 27 = 1512,
63/56 = 63 × 27/56 × 27 = 1701/1512 - Subtract the two like fractions:
588/1512 - 1701/1512 = 588 - 1701/1512 = -1113/1512 - After reducing the fraction, the answer is -53/72
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