Subtract 42/7 from 15/98
1st number: 15/98, 2nd number: 6 0/7
15/98 - 42/7 is -573/98.
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,
15/98 = 15 × 1/98 × 1 = 15/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
42/7 = 42 × 14/7 × 14 = 588/98 - Subtract the two like fractions:
15/98 - 588/98 = 15 - 588/98 = -573/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/98-42/7 15/98-84/7 15/98-42/14 45/98-42/7 15/98-42/21 75/98-42/7 15/98-42/35 15/98-42/49