Add 30/9 and 7/15
1st number: 3 3/9, 2nd number: 7/15
30/9 + 7/15 is 19/5.
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,
30/9 = 30 × 5/9 × 5 = 150/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
7/15 = 7 × 3/15 × 3 = 21/45 - Add the two like fractions:
150/45 + 21/45 = 150 + 21/45 = 171/45 - 171/45 simplified gives 19/5
- So, 30/9 + 7/15 = 19/5
In mixed form: 34/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+7/15 30/9+14/15 30/18+7/15 30/9+7/30 90/9+7/15 30/9+21/15 30/27+7/15 30/9+7/45 30/9+35/15 30/45+7/15 30/9+7/75 30/9+49/15 30/63+7/15