Subtract 21/24 from 21/64
21/64 - 21/24 is -35/64.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 24 is 192
Next, find the equivalent fraction of both fractional numbers with denominator 192 - For the 1st fraction, since 64 × 3 = 192,
21/64 = 21 × 3/64 × 3 = 63/192 - Likewise, for the 2nd fraction, since 24 × 8 = 192,
21/24 = 21 × 8/24 × 8 = 168/192 - Subtract the two like fractions:
63/192 - 168/192 = 63 - 168/192 = -105/192 - After reducing the fraction, the answer is -35/64
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