Subtract 20/32 from 7/54
7/54 - 20/32 is -107/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 32 is 864
Next, find the equivalent fraction of both fractional numbers with denominator 864 - For the 1st fraction, since 54 × 16 = 864,
7/54 = 7 × 16/54 × 16 = 112/864 - Likewise, for the 2nd fraction, since 32 × 27 = 864,
20/32 = 20 × 27/32 × 27 = 540/864 - Subtract the two like fractions:
112/864 - 540/864 = 112 - 540/864 = -428/864 - After reducing the fraction, the answer is -107/216
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