Add 18/9 and 5/12
1st number: 2 0/9, 2nd number: 5/12
18/9 + 5/12 is 29/12.
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,
18/9 = 18 × 4/9 × 4 = 72/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
5/12 = 5 × 3/12 × 3 = 15/36 - Add the two like fractions:
72/36 + 15/36 = 72 + 15/36 = 87/36 - 87/36 simplified gives 29/12
- So, 18/9 + 5/12 = 29/12
In mixed form: 25/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+5/12 18/9+10/12 18/9+5/24 54/9+5/12 18/9+15/12 18/27+5/12 18/9+5/36 90/9+5/12 18/9+25/12 18/45+5/12 18/9+5/60 18/9+35/12 18/63+5/12 18/9+5/84