Add 7/9 and 40/15
1st number: 7/9, 2nd number: 2 10/15
7/9 + 40/15 is 31/9.
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,
7/9 = 7 × 5/9 × 5 = 35/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
40/15 = 40 × 3/15 × 3 = 120/45 - Add the two like fractions:
35/45 + 120/45 = 35 + 120/45 = 155/45 - 155/45 simplified gives 31/9
- So, 7/9 + 40/15 = 31/9
In mixed form: 34/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/9+40/15 7/9+80/15 7/18+40/15 7/9+40/30 21/9+40/15 7/27+40/15 7/9+40/45 35/9+40/15 7/45+40/15 7/9+40/75 49/9+40/15 7/63+40/15