Add 18/15 and 35/9
1st number: 1 3/15, 2nd number: 3 8/9
18/15 + 35/9 is 229/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
18/15 = 18 × 3/15 × 3 = 54/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
35/9 = 35 × 5/9 × 5 = 175/45 - Add the two like fractions:
54/45 + 175/45 = 54 + 175/45 = 229/45 - So, 18/15 + 35/9 = 229/45
In mixed form: 54/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+35/9 18/15+70/9 18/30+35/9 18/15+35/18 54/15+35/9 18/45+35/9 18/15+35/27 90/15+35/9 18/75+35/9 18/15+35/45 18/15+35/63