Subtract 21/54 from 42/96
42/96 - 21/54 is 7/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 54 is 864
Next, find the equivalent fraction of both fractional numbers with denominator 864 - For the 1st fraction, since 96 × 9 = 864,
42/96 = 42 × 9/96 × 9 = 378/864 - Likewise, for the 2nd fraction, since 54 × 16 = 864,
21/54 = 21 × 16/54 × 16 = 336/864 - Subtract the two like fractions:
378/864 - 336/864 = 378 - 336/864 = 42/864 - After reducing the fraction, the answer is 7/144
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