Subtract 20/27 from 18/32
18/32 - 20/27 is -77/432.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 27 is 864
Next, find the equivalent fraction of both fractional numbers with denominator 864 - For the 1st fraction, since 32 × 27 = 864,
18/32 = 18 × 27/32 × 27 = 486/864 - Likewise, for the 2nd fraction, since 27 × 32 = 864,
20/27 = 20 × 32/27 × 32 = 640/864 - Subtract the two like fractions:
486/864 - 640/864 = 486 - 640/864 = -154/864 - After reducing the fraction, the answer is -77/432
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