Subtract 21/24 from 1/2
1/2 - 21/24 is -3/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 2 × 12 = 24,
1/2 = 1 × 12/2 × 12 = 12/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24 - Subtract the two like fractions:
12/24 - 21/24 = 12 - 21/24 = -9/24 - After reducing the fraction, the answer is -3/8
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