Subtract 3/42 from 49/64, Solve 49/64

Subtract 3/42 from 49/64

49/64 - 3/42 is 311/448.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 42 is 1344

Next, find the equivalent fraction of both fractional numbers with denominator 1344
For the 1st fraction, since 64 × 21 = 1344,
49/64 = 49 × 21/64 × 21 = 1029/1344
Likewise, for the 2nd fraction, since 42 × 32 = 1344,
3/42 = 3 × 32/42 × 32 = 96/1344
Subtract the two like fractions:
1029/1344 - 96/1344 = 1029 - 96/1344 = 933/1344
After reducing the fraction, the answer is 311/448

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