Add 3/12 and 6/9
3/12 + 6/9 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
3/12 = 3 × 3/12 × 3 = 9/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
6/9 = 6 × 4/9 × 4 = 24/36 - Add the two like fractions:
9/36 + 24/36 = 9 + 24/36 = 33/36 - 33/36 simplified gives 11/12
- So, 3/12 + 6/9 = 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+6/9 3/12+12/9 3/24+6/9 3/12+6/18 9/12+6/9 3/12+18/9 3/36+6/9 3/12+6/27 15/12+6/9 3/12+30/9 3/60+6/9 3/12+6/45 21/12+6/9 3/12+42/9 3/84+6/9 3/12+6/63