Subtract 21/14 from 7/98
1st number: 7/98, 2nd number: 1 7/14
7/98 - 21/14 is -10/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 14 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 98 × 1 = 98,
7/98 = 7 × 1/98 × 1 = 7/98 - Likewise, for the 2nd fraction, since 14 × 7 = 98,
21/14 = 21 × 7/14 × 7 = 147/98 - Subtract the two like fractions:
7/98 - 147/98 = 7 - 147/98 = -140/98 - After reducing the fraction, the answer is -10/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/98-21/14 7/98-42/14 7/98-21/28 21/98-21/14 7/98-63/14 7/98-21/42 35/98-21/14 7/98-21/70 49/98-21/14 7/98-21/98