Add 3/9 and 3/4
3/9 + 3/4 is 13/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
3/9 = 3 × 4/9 × 4 = 12/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
3/4 = 3 × 9/4 × 9 = 27/36 - Add the two like fractions:
12/36 + 27/36 = 12 + 27/36 = 39/36 - 39/36 simplified gives 13/12
- So, 3/9 + 3/4 = 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: 6/9+3/4 3/9+6/4 3/18+3/4 3/9+3/8 3/9+9/4 3/27+3/4 3/9+3/12 15/9+3/4 3/9+15/4 3/45+3/4 3/9+3/20 21/9+3/4 3/9+21/4 3/63+3/4 3/9+3/28