Add 70/9 and 56/15
1st number: 7 7/9, 2nd number: 3 11/15
70/9 + 56/15 is 518/45.
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,
56/15 = 56 × 3/15 × 3 = 168/45 - Add the two like fractions:
350/45 + 168/45 = 350 + 168/45 = 518/45 - So, 70/9 + 56/15 = 518/45
In mixed form: 1123/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+56/15 70/9+56/30 70/27+56/15 70/9+56/45 70/45+56/15 70/9+56/75 70/63+56/15