Subtract 63/64 from 16/42
16/42 - 63/64 is -811/1344.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 42 × 32 = 1344,
16/42 = 16 × 32/42 × 32 = 512/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
63/64 = 63 × 21/64 × 21 = 1323/1344 - Subtract the two like fractions:
512/1344 - 1323/1344 = 512 - 1323/1344 = -811/1344
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