Subtract 8/9 from 80/7
1st number: 11 3/7, 2nd number: 8/9
80/7 - 8/9 is 664/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
80/7 = 80 × 9/7 × 9 = 720/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
8/9 = 8 × 7/9 × 7 = 56/63 - Subtract the two like fractions:
720/63 - 56/63 = 720 - 56/63 = 664/63 - In mixed form: 1034/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7-16/9 80/14-8/9 80/7-8/18 80/7-24/9 80/21-8/9 80/7-8/27 80/7-40/9 80/35-8/9 80/7-8/45 80/7-56/9 80/49-8/9 80/7-8/63