Add 18/9 and 16/15
1st number: 2 0/9, 2nd number: 1 1/15
18/9 + 16/15 is 46/15.
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,
16/15 = 16 × 3/15 × 3 = 48/45 - Add the two like fractions:
90/45 + 48/45 = 90 + 48/45 = 138/45 - 138/45 simplified gives 46/15
- So, 18/9 + 16/15 = 46/15
In mixed form: 31/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+16/15 18/9+32/15 18/9+16/30 54/9+16/15 18/9+48/15 18/27+16/15 18/9+16/45 90/9+16/15 18/9+80/15 18/45+16/15 18/9+16/75 18/63+16/15