Add 18/9 and 8/12
1st number: 2 0/9, 2nd number: 8/12
18/9 + 8/12 is 8/3.
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,
8/12 = 8 × 3/12 × 3 = 24/36 - Add the two like fractions:
72/36 + 24/36 = 72 + 24/36 = 96/36 - 96/36 simplified gives 8/3
- So, 18/9 + 8/12 = 8/3
In mixed form: 22/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+8/12 18/9+16/12 18/9+8/24 54/9+8/12 18/9+24/12 18/27+8/12 18/9+8/36 90/9+8/12 18/9+40/12 18/45+8/12 18/9+8/60 18/9+56/12 18/63+8/12 18/9+8/84