Subtract 21/63 from 81/56
1st number: 1 25/56, 2nd number: 21/63
81/56 - 21/63 is 187/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
81/56 = 81 × 9/56 × 9 = 729/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504 - Subtract the two like fractions:
729/504 - 168/504 = 729 - 168/504 = 561/504 - After reducing the fraction, the answer is 187/168
- In mixed form: 119/168
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