Subtract 30/84 from 7/98
7/98 - 30/84 is -2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 84 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 98 × 6 = 588,
7/98 = 7 × 6/98 × 6 = 42/588 - Likewise, for the 2nd fraction, since 84 × 7 = 588,
30/84 = 30 × 7/84 × 7 = 210/588 - Subtract the two like fractions:
42/588 - 210/588 = 42 - 210/588 = -168/588 - After reducing the fraction, the answer is -2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/98-30/84 7/98-60/84 21/98-30/84 7/98-90/84 35/98-30/84 49/98-30/84