Subtract 21/96 from 42/54
42/54 - 21/96 is 161/288.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 96 is 864
Next, find the equivalent fraction of both fractional numbers with denominator 864 - For the 1st fraction, since 54 × 16 = 864,
42/54 = 42 × 16/54 × 16 = 672/864 - Likewise, for the 2nd fraction, since 96 × 9 = 864,
21/96 = 21 × 9/96 × 9 = 189/864 - Subtract the two like fractions:
672/864 - 189/864 = 672 - 189/864 = 483/864 - After reducing the fraction, the answer is 161/288
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