Subtract 81/56 from 3/20
1st number: 3/20, 2nd number: 1 25/56
3/20 - 81/56 is -363/280.
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,
3/20 = 3 × 14/20 × 14 = 42/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
81/56 = 81 × 5/56 × 5 = 405/280 - Subtract the two like fractions:
42/280 - 405/280 = 42 - 405/280 = -363/280
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