Subtract 18/64 from 18/28, Solve 18/28

Subtract 18/64 from 18/28

18/28 - 18/64 is 81/224.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 64 is 448

Next, find the equivalent fraction of both fractional numbers with denominator 448
For the 1st fraction, since 28 × 16 = 448,
18/28 = 18 × 16/28 × 16 = 288/448
Likewise, for the 2nd fraction, since 64 × 7 = 448,
18/64 = 18 × 7/64 × 7 = 126/448
Subtract the two like fractions:
288/448 - 126/448 = 288 - 126/448 = 162/448
After reducing the fraction, the answer is 81/224

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