Subtract 4/64 from 6/21, Solve 6/21

Subtract 4/64 from 6/21

6/21 - 4/64 is 25/112.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1344
For the 1st fraction, since 21 × 64 = 1344,
6/21 = 6 × 64/21 × 64 = 384/1344
Likewise, for the 2nd fraction, since 64 × 21 = 1344,
4/64 = 4 × 21/64 × 21 = 84/1344
Subtract the two like fractions:
384/1344 - 84/1344 = 384 - 84/1344 = 300/1344
After reducing the fraction, the answer is 25/112

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