Subtract 98/9 from 15/90
1st number: 15/90, 2nd number: 10 8/9
15/90 - 98/9 is -193/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
98/9 = 98 × 10/9 × 10 = 980/90 - Subtract the two like fractions:
15/90 - 980/90 = 15 - 980/90 = -965/90 - After reducing the fraction, the answer is -193/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90-98/9 15/90-98/18 45/90-98/9 15/90-98/27 75/90-98/9 15/90-98/45 15/90-98/63