Add 12/24 and 15/9
1st number: 12/24, 2nd number: 1 6/9
12/24 + 15/9 is 13/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
12/24 = 12 × 3/24 × 3 = 36/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
15/9 = 15 × 8/9 × 8 = 120/72 - Add the two like fractions:
36/72 + 120/72 = 36 + 120/72 = 156/72 - 156/72 simplified gives 13/6
- So, 12/24 + 15/9 = 13/6
In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/24+30/9 12/48+15/9 12/24+15/18 36/24+15/9 12/24+45/9 12/72+15/9 12/24+15/27 60/24+15/9 12/24+75/9 12/24+15/45 84/24+15/9 12/24+15/63