Add 5/9 and 15/18
5/9 + 15/18 is 25/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
5/9 = 5 × 2/9 × 2 = 10/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
15/18 = 15 × 1/18 × 1 = 15/18 - Add the two like fractions:
10/18 + 15/18 = 10 + 15/18 = 25/18 - So, 5/9 + 15/18 = 25/18
In mixed form: 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/9+15/18 5/9+30/18 5/18+15/18 5/9+15/36 15/9+15/18 5/9+45/18 5/27+15/18 5/9+15/54 25/9+15/18 5/9+75/18 5/45+15/18 5/9+15/90 35/9+15/18 5/63+15/18