Subtract 20/32 from 4/8
4/8 - 20/32 is -1/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 32 is 32
Next, find the equivalent fraction of both fractional numbers with denominator 32 - For the 1st fraction, since 8 × 4 = 32,
4/8 = 4 × 4/8 × 4 = 16/32 - Likewise, for the 2nd fraction, since 32 × 1 = 32,
20/32 = 20 × 1/32 × 1 = 20/32 - Subtract the two like fractions:
16/32 - 20/32 = 16 - 20/32 = -4/32 - After reducing the fraction, the answer is -1/8
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