Subtract 4/5 from 20/56
20/56 - 4/5 is -31/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 5 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
20/56 = 20 × 5/56 × 5 = 100/280 - Likewise, for the 2nd fraction, since 5 × 56 = 280,
4/5 = 4 × 56/5 × 56 = 224/280 - Subtract the two like fractions:
100/280 - 224/280 = 100 - 224/280 = -124/280 - After reducing the fraction, the answer is -31/70
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