Subtract 98/90 from 2/15
1st number: 2/15, 2nd number: 1 8/90
2/15 - 98/90 is -43/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
2/15 = 2 × 6/15 × 6 = 12/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
98/90 = 98 × 1/90 × 1 = 98/90 - Subtract the two like fractions:
12/90 - 98/90 = 12 - 98/90 = -86/90 - After reducing the fraction, the answer is -43/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/15-98/90 2/30-98/90 6/15-98/90 2/45-98/90 10/15-98/90 2/75-98/90 14/15-98/90