Subtract 1/72 from 28/64, Solve 28/64

Subtract 1/72 from 28/64

28/64 - 1/72 is 61/144.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 72 is 576

Next, find the equivalent fraction of both fractional numbers with denominator 576
For the 1st fraction, since 64 × 9 = 576,
28/64 = 28 × 9/64 × 9 = 252/576
Likewise, for the 2nd fraction, since 72 × 8 = 576,
1/72 = 1 × 8/72 × 8 = 8/576
Subtract the two like fractions:
252/576 - 8/576 = 252 - 8/576 = 244/576
After reducing the fraction, the answer is 61/144

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