Subtract 90/9 from 98/60
1st number: 1 38/60, 2nd number: 10 0/9
98/60 - 90/9 is -251/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
98/60 = 98 × 3/60 × 3 = 294/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
90/9 = 90 × 20/9 × 20 = 1800/180 - Subtract the two like fractions:
294/180 - 1800/180 = 294 - 1800/180 = -1506/180 - After reducing the fraction, the answer is -251/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/60-90/18 98/60-90/27 98/60-90/45 98/60-90/63