Subtract 81/7 from 27/56
1st number: 27/56, 2nd number: 11 4/7
27/56 - 81/7 is -621/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
27/56 = 27 × 1/56 × 1 = 27/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
81/7 = 81 × 8/7 × 8 = 648/56 - Subtract the two like fractions:
27/56 - 648/56 = 27 - 648/56 = -621/56
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