Subtract 1/54 from 42/64, Solve 42/64

Subtract 1/54 from 42/64

42/64 - 1/54 is 551/864.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 54 is 1728

Next, find the equivalent fraction of both fractional numbers with denominator 1728
For the 1st fraction, since 64 × 27 = 1728,
42/64 = 42 × 27/64 × 27 = 1134/1728
Likewise, for the 2nd fraction, since 54 × 32 = 1728,
1/54 = 1 × 32/54 × 32 = 32/1728
Subtract the two like fractions:
1134/1728 - 32/1728 = 1134 - 32/1728 = 1102/1728
After reducing the fraction, the answer is 551/864

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