Add 15/9 and 6/15
1st number: 1 6/9, 2nd number: 6/15
15/9 + 6/15 is 31/15.
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,
15/9 = 15 × 5/9 × 5 = 75/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
6/15 = 6 × 3/15 × 3 = 18/45 - Add the two like fractions:
75/45 + 18/45 = 75 + 18/45 = 93/45 - 93/45 simplified gives 31/15
- So, 15/9 + 6/15 = 31/15
In mixed form: 21/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+6/15 15/9+12/15 15/18+6/15 15/9+6/30 45/9+6/15 15/9+18/15 15/27+6/15 15/9+6/45 75/9+6/15 15/9+30/15 15/45+6/15 15/9+6/75 15/9+42/15 15/63+6/15