Subtract 1/64 from 27/21, Solve 1 6/21

Subtract 1/64 from 27/21

1^st number: 1 6/21, 2^nd number: 1/64

27/21 - 1/64 is 569/448.

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,
27/21 = 27 × 64/21 × 64 = 1728/1344
Likewise, for the 2nd fraction, since 64 × 21 = 1344,
1/64 = 1 × 21/64 × 21 = 21/1344
Subtract the two like fractions:
1728/1344 - 21/1344 = 1728 - 21/1344 = 1707/1344
After reducing the fraction, the answer is 569/448
In mixed form: 1121/448

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