Subtract 18/20 from 1/32
1/32 - 18/20 is -139/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 20 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
1/32 = 1 × 5/32 × 5 = 5/160 - Likewise, for the 2nd fraction, since 20 × 8 = 160,
18/20 = 18 × 8/20 × 8 = 144/160 - Subtract the two like fractions:
5/160 - 144/160 = 5 - 144/160 = -139/160
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