Add 12/3 and 9/30
1st number: 4 0/3, 2nd number: 9/30
12/3 + 9/30 is 43/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,
12/3 = 12 × 10/3 × 10 = 120/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
9/30 = 9 × 1/30 × 1 = 9/30 - Add the two like fractions:
120/30 + 9/30 = 120 + 9/30 = 129/30 - 129/30 simplified gives 43/10
- So, 12/3 + 9/30 = 43/10
In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3+9/30 12/3+18/30 12/6+9/30 12/3+9/60 36/3+9/30 12/3+27/30 12/9+9/30 12/3+9/90 60/3+9/30 12/3+45/30 12/15+9/30 84/3+9/30 12/3+63/30 12/21+9/30