Subtract 21/72 from 7/96
7/96 - 21/72 is -7/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 72 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 96 × 3 = 288,
7/96 = 7 × 3/96 × 3 = 21/288 - Likewise, for the 2nd fraction, since 72 × 4 = 288,
21/72 = 21 × 4/72 × 4 = 84/288 - Subtract the two like fractions:
21/288 - 84/288 = 21 - 84/288 = -63/288 - After reducing the fraction, the answer is -7/32
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