Add 8/15 and 15/18
8/15 + 15/18 is 41/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
8/15 = 8 × 6/15 × 6 = 48/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Add the two like fractions:
48/90 + 75/90 = 48 + 75/90 = 123/90 - 123/90 simplified gives 41/30
- So, 8/15 + 15/18 = 41/30
In mixed form: 111/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/15+15/18 8/15+30/18 8/30+15/18 8/15+15/36 24/15+15/18 8/15+45/18 8/45+15/18 8/15+15/54 40/15+15/18 8/15+75/18 8/75+15/18 8/15+15/90 56/15+15/18