Add 9/12 and 6/18
9/12 + 6/18 is 13/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
9/12 = 9 × 3/12 × 3 = 27/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
6/18 = 6 × 2/18 × 2 = 12/36 - Add the two like fractions:
27/36 + 12/36 = 27 + 12/36 = 39/36 - 39/36 simplified gives 13/12
- So, 9/12 + 6/18 = 13/12
In mixed form: 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12+6/18 9/12+12/18 9/24+6/18 9/12+6/36 27/12+6/18 9/36+6/18 9/12+6/54 45/12+6/18 9/12+30/18 9/60+6/18 9/12+6/90 63/12+6/18 9/12+42/18 9/84+6/18