Subtract 81/50 from 20/56
1st number: 20/56, 2nd number: 1 31/50
20/56 - 81/50 is -221/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 50 is 1400
Next, find the equivalent fraction of both fractional numbers with denominator 1400 - For the 1st fraction, since 56 × 25 = 1400,
20/56 = 20 × 25/56 × 25 = 500/1400 - Likewise, for the 2nd fraction, since 50 × 28 = 1400,
81/50 = 81 × 28/50 × 28 = 2268/1400 - Subtract the two like fractions:
500/1400 - 2268/1400 = 500 - 2268/1400 = -1768/1400 - After reducing the fraction, the answer is -221/175
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