Subtract 9/49 from 40/84
40/84 - 9/49 is 43/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 49 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
40/84 = 40 × 7/84 × 7 = 280/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
9/49 = 9 × 12/49 × 12 = 108/588 - Subtract the two like fractions:
280/588 - 108/588 = 280 - 108/588 = 172/588 - After reducing the fraction, the answer is 43/147
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