Subtract 21/32 from 16/84
16/84 - 21/32 is -313/672.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 84 × 8 = 672,
16/84 = 16 × 8/84 × 8 = 128/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
21/32 = 21 × 21/32 × 21 = 441/672 - Subtract the two like fractions:
128/672 - 441/672 = 128 - 441/672 = -313/672
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