Subtract 98/9 from 30/18
1st number: 1 12/18, 2nd number: 10 8/9
30/18 - 98/9 is -83/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
30/18 = 30 × 1/18 × 1 = 30/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
98/9 = 98 × 2/9 × 2 = 196/18 - Subtract the two like fractions:
30/18 - 196/18 = 30 - 196/18 = -166/18 - After reducing the fraction, the answer is -83/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18-98/9 30/36-98/9 30/18-98/18 90/18-98/9 30/54-98/9 30/18-98/27 30/90-98/9 30/18-98/45 30/18-98/63