Subtract 21/24 from 21/32
21/32 - 21/24 is -7/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 24 is 96
Next, find the equivalent fraction of both fractional numbers with denominator 96 - For the 1st fraction, since 32 × 3 = 96,
21/32 = 21 × 3/32 × 3 = 63/96 - Likewise, for the 2nd fraction, since 24 × 4 = 96,
21/24 = 21 × 4/24 × 4 = 84/96 - Subtract the two like fractions:
63/96 - 84/96 = 63 - 84/96 = -21/96 - After reducing the fraction, the answer is -7/32
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