Subtract 1/18 from 42/64, Solve 42/64

Subtract 1/18 from 42/64

42/64 - 1/18 is 173/288.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 18 is 576

Next, find the equivalent fraction of both fractional numbers with denominator 576
For the 1st fraction, since 64 × 9 = 576,
42/64 = 42 × 9/64 × 9 = 378/576
Likewise, for the 2nd fraction, since 18 × 32 = 576,
1/18 = 1 × 32/18 × 32 = 32/576
Subtract the two like fractions:
378/576 - 32/576 = 378 - 32/576 = 346/576
After reducing the fraction, the answer is 173/288

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