Subtract 20/32 from 4/7
4/7 - 20/32 is -3/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 7 × 32 = 224,
4/7 = 4 × 32/7 × 32 = 128/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
20/32 = 20 × 7/32 × 7 = 140/224 - Subtract the two like fractions:
128/224 - 140/224 = 128 - 140/224 = -12/224 - After reducing the fraction, the answer is -3/56
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