Add 80/15 and 9/30
1st number: 5 5/15, 2nd number: 9/30
80/15 + 9/30 is 169/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
80/15 = 80 × 2/15 × 2 = 160/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
9/30 = 9 × 1/30 × 1 = 9/30 - Add the two like fractions:
160/30 + 9/30 = 160 + 9/30 = 169/30 - So, 80/15 + 9/30 = 169/30
In mixed form: 519/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+18/30 80/30+9/30 80/15+9/60 80/15+27/30 80/45+9/30 80/15+9/90 80/15+45/30 80/75+9/30 80/15+63/30