Subtract 14/64 from 25/21, Solve 1 4/21

Subtract 14/64 from 25/21

1^st number: 1 4/21, 2^nd number: 14/64

25/21 - 14/64 is 653/672.

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,
25/21 = 25 × 64/21 × 64 = 1600/1344
Likewise, for the 2nd fraction, since 64 × 21 = 1344,
14/64 = 14 × 21/64 × 21 = 294/1344
Subtract the two like fractions:
1600/1344 - 294/1344 = 1600 - 294/1344 = 1306/1344
After reducing the fraction, the answer is 653/672

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