Add 3/9 and 12/5
1st number: 3/9, 2nd number: 2 2/5
3/9 + 12/5 is 41/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
3/9 = 3 × 5/9 × 5 = 15/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
12/5 = 12 × 9/5 × 9 = 108/45 - Add the two like fractions:
15/45 + 108/45 = 15 + 108/45 = 123/45 - 123/45 simplified gives 41/15
- So, 3/9 + 12/5 = 41/15
In mixed form: 211/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9+12/5 3/9+24/5 3/18+12/5 3/9+12/10 3/9+36/5 3/27+12/5 3/9+12/15 15/9+12/5 3/9+60/5 3/45+12/5 3/9+12/25 21/9+12/5 3/9+84/5 3/63+12/5 3/9+12/35