Subtract 56/7 from 21/98
1st number: 21/98, 2nd number: 8 0/7
21/98 - 56/7 is -109/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 7 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 98 × 1 = 98,
21/98 = 21 × 1/98 × 1 = 21/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
56/7 = 56 × 14/7 × 14 = 784/98 - Subtract the two like fractions:
21/98 - 784/98 = 21 - 784/98 = -763/98 - After reducing the fraction, the answer is -109/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/98-56/7 21/98-56/14 63/98-56/7 21/98-56/21 21/98-56/35 21/98-56/49