Subtract 10/64 from 40/21, Solve 1 19/21

Subtract 10/64 from 40/21

1^st number: 1 19/21, 2^nd number: 10/64

40/21 - 10/64 is 1175/672.

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,
40/21 = 40 × 64/21 × 64 = 2560/1344
Likewise, for the 2nd fraction, since 64 × 21 = 1344,
10/64 = 10 × 21/64 × 21 = 210/1344
Subtract the two like fractions:
2560/1344 - 210/1344 = 2560 - 210/1344 = 2350/1344
After reducing the fraction, the answer is 1175/672
In mixed form: 1503/672

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