Subtract 35/49 from 18/84
18/84 - 35/49 is -1/2.
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,
18/84 = 18 × 7/84 × 7 = 126/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
35/49 = 35 × 12/49 × 12 = 420/588 - Subtract the two like fractions:
126/588 - 420/588 = 126 - 420/588 = -294/588 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84-35/49 18/84-70/49 18/84-35/98 54/84-35/49 90/84-35/49