Add 7/9 and 8/18
7/9 + 8/18 is 11/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
7/9 = 7 × 2/9 × 2 = 14/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
8/18 = 8 × 1/18 × 1 = 8/18 - Add the two like fractions:
14/18 + 8/18 = 14 + 8/18 = 22/18 - 22/18 simplified gives 11/9
- So, 7/9 + 8/18 = 11/9
In mixed form: 12/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/9+8/18 7/9+16/18 7/18+8/18 7/9+8/36 21/9+8/18 7/9+24/18 7/27+8/18 7/9+8/54 35/9+8/18 7/9+40/18 7/45+8/18 7/9+8/90 49/9+8/18 7/9+56/18 7/63+8/18