Subtract 7/20 from 4/56
4/56 - 7/20 is -39/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
4/56 = 4 × 5/56 × 5 = 20/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
7/20 = 7 × 14/20 × 14 = 98/280 - Subtract the two like fractions:
20/280 - 98/280 = 20 - 98/280 = -78/280 - After reducing the fraction, the answer is -39/140
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