Subtract 80/9 from 10/8
1st number: 1 2/8, 2nd number: 8 8/9
10/8 - 80/9 is -275/36.
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,
10/8 = 10 × 9/8 × 9 = 90/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
80/9 = 80 × 8/9 × 8 = 640/72 - Subtract the two like fractions:
90/72 - 640/72 = 90 - 640/72 = -550/72 - After reducing the fraction, the answer is -275/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/8-80/9 10/16-80/9 10/8-80/18 30/8-80/9 10/24-80/9 10/8-80/27 50/8-80/9 10/40-80/9 10/8-80/45 70/8-80/9 10/56-80/9 10/8-80/63