Subtract 21/18 from 20/32
1st number: 20/32, 2nd number: 1 3/18
20/32 - 21/18 is -13/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 18 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 32 × 9 = 288,
20/32 = 20 × 9/32 × 9 = 180/288 - Likewise, for the 2nd fraction, since 18 × 16 = 288,
21/18 = 21 × 16/18 × 16 = 336/288 - Subtract the two like fractions:
180/288 - 336/288 = 180 - 336/288 = -156/288 - After reducing the fraction, the answer is -13/24
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