Add 80/9 and 7/15
1st number: 8 8/9, 2nd number: 7/15
80/9 + 7/15 is 421/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
80/9 = 80 × 5/9 × 5 = 400/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
7/15 = 7 × 3/15 × 3 = 21/45 - Add the two like fractions:
400/45 + 21/45 = 400 + 21/45 = 421/45 - So, 80/9 + 7/15 = 421/45
In mixed form: 916/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/9+14/15 80/18+7/15 80/9+7/30 80/9+21/15 80/27+7/15 80/9+7/45 80/9+35/15 80/45+7/15 80/9+7/75 80/9+49/15 80/63+7/15