Add 15/9 and 3/15
1st number: 1 6/9, 2nd number: 3/15
15/9 + 3/15 is 28/15.
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,
3/15 = 3 × 3/15 × 3 = 9/45 - Add the two like fractions:
75/45 + 9/45 = 75 + 9/45 = 84/45 - 84/45 simplified gives 28/15
- So, 15/9 + 3/15 = 28/15
In mixed form: 113/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+3/15 15/9+6/15 15/18+3/15 15/9+3/30 45/9+3/15 15/9+9/15 15/27+3/15 15/9+3/45 75/9+3/15 15/45+3/15 15/9+3/75 15/9+21/15 15/63+3/15