Add 15/9 and 12/45
1st number: 1 6/9, 2nd number: 12/45
15/9 + 12/45 is 29/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
15/9 = 15 × 5/9 × 5 = 75/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
12/45 = 12 × 1/45 × 1 = 12/45 - Add the two like fractions:
75/45 + 12/45 = 75 + 12/45 = 87/45 - 87/45 simplified gives 29/15
- So, 15/9 + 12/45 = 29/15
In mixed form: 114/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+12/45 15/9+24/45 15/18+12/45 15/9+12/90 45/9+12/45 15/9+36/45 15/27+12/45 75/9+12/45 15/9+60/45 15/45+12/45 15/9+84/45 15/63+12/45