Subtract 90/7 from 3/98
1st number: 3/98, 2nd number: 12 6/7
3/98 - 90/7 is -1257/98.
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,
3/98 = 3 × 1/98 × 1 = 3/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
90/7 = 90 × 14/7 × 14 = 1260/98 - Subtract the two like fractions:
3/98 - 1260/98 = 3 - 1260/98 = -1257/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/98-90/7 3/98-90/14 9/98-90/7 3/98-90/21 15/98-90/7 3/98-90/35 21/98-90/7 3/98-90/49