Subtract 80/9 from 2/8
1st number: 2/8, 2nd number: 8 8/9
2/8 - 80/9 is -311/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
2/8 = 2 × 9/8 × 9 = 18/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
80/9 = 80 × 8/9 × 8 = 640/72 - Subtract the two like fractions:
18/72 - 640/72 = 18 - 640/72 = -622/72 - After reducing the fraction, the answer is -311/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8-80/9 2/16-80/9 2/8-80/18 6/8-80/9 2/24-80/9 2/8-80/27 10/8-80/9 2/40-80/9 2/8-80/45 14/8-80/9 2/56-80/9 2/8-80/63