Add 15/18 and 8/15
15/18 + 8/15 is 41/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
8/15 = 8 × 6/15 × 6 = 48/90 - Add the two like fractions:
75/90 + 48/90 = 75 + 48/90 = 123/90 - 123/90 simplified gives 41/30
- So, 15/18 + 8/15 = 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: 30/18+8/15 15/18+16/15 15/36+8/15 15/18+8/30 45/18+8/15 15/18+24/15 15/54+8/15 15/18+8/45 75/18+8/15 15/18+40/15 15/90+8/15 15/18+8/75 15/18+56/15