Subtract 21/12 from 20/32
1st number: 20/32, 2nd number: 1 9/12
20/32 - 21/12 is -9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 12 is 96
Next, find the equivalent fraction of both fractional numbers with denominator 96 - For the 1st fraction, since 32 × 3 = 96,
20/32 = 20 × 3/32 × 3 = 60/96 - Likewise, for the 2nd fraction, since 12 × 8 = 96,
21/12 = 21 × 8/12 × 8 = 168/96 - Subtract the two like fractions:
60/96 - 168/96 = 60 - 168/96 = -108/96 - After reducing the fraction, the answer is -9/8
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