Add 84/9 and 9/12
1st number: 9 3/9, 2nd number: 9/12
84/9 + 9/12 is 121/12.
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,
84/9 = 84 × 4/9 × 4 = 336/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
9/12 = 9 × 3/12 × 3 = 27/36 - Add the two like fractions:
336/36 + 27/36 = 336 + 27/36 = 363/36 - 363/36 simplified gives 121/12
- So, 84/9 + 9/12 = 121/12
In mixed form: 101/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9+18/12 84/18+9/12 84/9+9/24 84/9+27/12 84/27+9/12 84/9+9/36 84/9+45/12 84/45+9/12 84/9+9/60 84/9+63/12 84/63+9/12 84/9+9/84