Add 70/9 and 7/15
1st number: 7 7/9, 2nd number: 7/15
70/9 + 7/15 is 371/45.
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,
70/9 = 70 × 5/9 × 5 = 350/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
7/15 = 7 × 3/15 × 3 = 21/45 - Add the two like fractions:
350/45 + 21/45 = 350 + 21/45 = 371/45 - So, 70/9 + 7/15 = 371/45
In mixed form: 811/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9+14/15 70/18+7/15 70/9+7/30 70/9+21/15 70/27+7/15 70/9+7/45 70/9+35/15 70/45+7/15 70/9+7/75 70/9+49/15 70/63+7/15