Subtract 21/7 from 49/98
1st number: 49/98, 2nd number: 3 0/7
49/98 - 21/7 is -5/2.
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,
49/98 = 49 × 1/98 × 1 = 49/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
21/7 = 21 × 14/7 × 14 = 294/98 - Subtract the two like fractions:
49/98 - 294/98 = 49 - 294/98 = -245/98 - After reducing the fraction, the answer is -5/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 49/98-42/7 49/98-21/14 49/98-63/7 49/98-21/35 49/98-21/49