Subtract 80/9 from 8/18
1st number: 8/18, 2nd number: 8 8/9
8/18 - 80/9 is -76/9.
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,
8/18 = 8 × 1/18 × 1 = 8/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
80/9 = 80 × 2/9 × 2 = 160/18 - Subtract the two like fractions:
8/18 - 160/18 = 8 - 160/18 = -152/18 - After reducing the fraction, the answer is -76/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18-80/9 8/36-80/9 8/18-80/18 24/18-80/9 8/54-80/9 8/18-80/27 40/18-80/9 8/90-80/9 8/18-80/45 56/18-80/9 8/18-80/63