Add 10/9 and 5/15
1st number: 1 1/9, 2nd number: 5/15
10/9 + 5/15 is 13/9.
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,
10/9 = 10 × 5/9 × 5 = 50/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
5/15 = 5 × 3/15 × 3 = 15/45 - Add the two like fractions:
50/45 + 15/45 = 50 + 15/45 = 65/45 - 65/45 simplified gives 13/9
- So, 10/9 + 5/15 = 13/9
In mixed form: 14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/9+5/15 10/9+10/15 10/18+5/15 10/9+5/30 30/9+5/15 10/27+5/15 10/9+5/45 50/9+5/15 10/9+25/15 10/45+5/15 10/9+5/75 70/9+5/15 10/9+35/15 10/63+5/15