Subtract 7/64 from 42/54
42/54 - 7/64 is 385/576.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 64 is 1728
Next, find the equivalent fraction of both fractional numbers with denominator 1728 - For the 1st fraction, since 54 × 32 = 1728,
42/54 = 42 × 32/54 × 32 = 1344/1728 - Likewise, for the 2nd fraction, since 64 × 27 = 1728,
7/64 = 7 × 27/64 × 27 = 189/1728 - Subtract the two like fractions:
1344/1728 - 189/1728 = 1344 - 189/1728 = 1155/1728 - After reducing the fraction, the answer is 385/576
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