Add 18/9 and 7/12
1st number: 2 0/9, 2nd number: 7/12
18/9 + 7/12 is 31/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
18/9 = 18 × 4/9 × 4 = 72/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
7/12 = 7 × 3/12 × 3 = 21/36 - Add the two like fractions:
72/36 + 21/36 = 72 + 21/36 = 93/36 - 93/36 simplified gives 31/12
- So, 18/9 + 7/12 = 31/12
In mixed form: 27/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+7/12 18/9+14/12 18/9+7/24 54/9+7/12 18/9+21/12 18/27+7/12 18/9+7/36 90/9+7/12 18/9+35/12 18/45+7/12 18/9+7/60 18/9+49/12 18/63+7/12 18/9+7/84