Subtract 15/32 from 7/20
7/20 - 15/32 is -19/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 20 × 8 = 160,
7/20 = 7 × 8/20 × 8 = 56/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
15/32 = 15 × 5/32 × 5 = 75/160 - Subtract the two like fractions:
56/160 - 75/160 = 56 - 75/160 = -19/160
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