Subtract 28/7 from 7/98
1st number: 7/98, 2nd number: 4 0/7
7/98 - 28/7 is -55/14.
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,
7/98 = 7 × 1/98 × 1 = 7/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
28/7 = 28 × 14/7 × 14 = 392/98 - Subtract the two like fractions:
7/98 - 392/98 = 7 - 392/98 = -385/98 - After reducing the fraction, the answer is -55/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/98-28/7 7/98-56/7 7/98-28/14 21/98-28/7 7/98-84/7 7/98-28/21 35/98-28/7 7/98-28/35 49/98-28/7 7/98-28/49