Subtract 81/56 from 27/20
1st number: 1 7/20, 2nd number: 1 25/56
27/20 - 81/56 is -27/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
27/20 = 27 × 14/20 × 14 = 378/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
81/56 = 81 × 5/56 × 5 = 405/280 - Subtract the two like fractions:
378/280 - 405/280 = 378 - 405/280 = -27/280
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