Subtract 20/72 from 98/9
1st number: 10 8/9, 2nd number: 20/72
98/9 - 20/72 is 191/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
98/9 = 98 × 8/9 × 8 = 784/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Subtract the two like fractions:
784/72 - 20/72 = 784 - 20/72 = 764/72 - After reducing the fraction, the answer is 191/18
- In mixed form: 1011/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/9-40/72 98/18-20/72 98/9-60/72 98/27-20/72 98/45-20/72 98/63-20/72