Add 30/9 and 45/36
1st number: 3 3/9, 2nd number: 1 9/36
30/9 + 45/36 is 55/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
30/9 = 30 × 4/9 × 4 = 120/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
45/36 = 45 × 1/36 × 1 = 45/36 - Add the two like fractions:
120/36 + 45/36 = 120 + 45/36 = 165/36 - 165/36 simplified gives 55/12
- So, 30/9 + 45/36 = 55/12
In mixed form: 47/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+45/36 30/9+90/36 30/18+45/36 30/9+45/72 90/9+45/36 30/27+45/36 30/45+45/36 30/63+45/36