Subtract 90/98 from 8/84
8/84 - 90/98 is -121/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 98 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
8/84 = 8 × 7/84 × 7 = 56/588 - Likewise, for the 2nd fraction, since 98 × 6 = 588,
90/98 = 90 × 6/98 × 6 = 540/588 - Subtract the two like fractions:
56/588 - 540/588 = 56 - 540/588 = -484/588 - After reducing the fraction, the answer is -121/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/84-90/98 24/84-90/98 40/84-90/98 56/84-90/98