Subtract 21/64 from 28/84
28/84 - 21/64 is 1/192.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 84 × 16 = 1344,
28/84 = 28 × 16/84 × 16 = 448/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
21/64 = 21 × 21/64 × 21 = 441/1344 - Subtract the two like fractions:
448/1344 - 441/1344 = 448 - 441/1344 = 7/1344 - After reducing the fraction, the answer is 1/192
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