Subtract 20/24 from 9/12
9/12 - 20/24 is -1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
9/12 = 9 × 2/12 × 2 = 18/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
20/24 = 20 × 1/24 × 1 = 20/24 - Subtract the two like fractions:
18/24 - 20/24 = 18 - 20/24 = -2/24 - After reducing the fraction, the answer is -1/12
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