Subtract 21/49 from 5/64, Solve 5/64

Subtract 21/49 from 5/64

5/64 - 21/49 is -157/448.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 49 is 3136

Next, find the equivalent fraction of both fractional numbers with denominator 3136
For the 1st fraction, since 64 × 49 = 3136,
5/64 = 5 × 49/64 × 49 = 245/3136
Likewise, for the 2nd fraction, since 49 × 64 = 3136,
21/49 = 21 × 64/49 × 64 = 1344/3136
Subtract the two like fractions:
245/3136 - 1344/3136 = 245 - 1344/3136 = -1099/3136
After reducing the fraction, the answer is -157/448

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