Subtract 90/20 from 20/56
1st number: 20/56, 2nd number: 4 10/20
20/56 - 90/20 is -29/7.
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,
20/56 = 20 × 5/56 × 5 = 100/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
90/20 = 90 × 14/20 × 14 = 1260/280 - Subtract the two like fractions:
100/280 - 1260/280 = 100 - 1260/280 = -1160/280 - After reducing the fraction, the answer is -29/7
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