Subtract 10/9 from 18/64, Solve 18/64

Subtract 10/9 from 18/64

1^st number: 18/64, 2^nd number: 1 1/9

18/64 - 10/9 is -239/288.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 9 is 576

Next, find the equivalent fraction of both fractional numbers with denominator 576
For the 1st fraction, since 64 × 9 = 576,
18/64 = 18 × 9/64 × 9 = 162/576
Likewise, for the 2nd fraction, since 9 × 64 = 576,
10/9 = 10 × 64/9 × 64 = 640/576
Subtract the two like fractions:
162/576 - 640/576 = 162 - 640/576 = -478/576
After reducing the fraction, the answer is -239/288

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