Subtract 42/54 from 35/84
35/84 - 42/54 is -13/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
35/84 = 35 × 9/84 × 9 = 315/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
42/54 = 42 × 14/54 × 14 = 588/756 - Subtract the two like fractions:
315/756 - 588/756 = 315 - 588/756 = -273/756 - After reducing the fraction, the answer is -13/36
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