Subtract 5/21 from 10/64, Solve 10/64

Subtract 5/21 from 10/64

10/64 - 5/21 is -55/672.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 21 is 1344

Next, find the equivalent fraction of both fractional numbers with denominator 1344
For the 1st fraction, since 64 × 21 = 1344,
10/64 = 10 × 21/64 × 21 = 210/1344
Likewise, for the 2nd fraction, since 21 × 64 = 1344,
5/21 = 5 × 64/21 × 64 = 320/1344
Subtract the two like fractions:
210/1344 - 320/1344 = 210 - 320/1344 = -110/1344
After reducing the fraction, the answer is -55/672

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