Add 18/9 and 8/15
1st number: 2 0/9, 2nd number: 8/15
18/9 + 8/15 is 38/15.
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,
18/9 = 18 × 5/9 × 5 = 90/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
8/15 = 8 × 3/15 × 3 = 24/45 - Add the two like fractions:
90/45 + 24/45 = 90 + 24/45 = 114/45 - 114/45 simplified gives 38/15
- So, 18/9 + 8/15 = 38/15
In mixed form: 28/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+8/15 18/9+16/15 18/9+8/30 54/9+8/15 18/9+24/15 18/27+8/15 18/9+8/45 90/9+8/15 18/9+40/15 18/45+8/15 18/9+8/75 18/9+56/15 18/63+8/15