Add 80/15 and 9/40
1st number: 5 5/15, 2nd number: 9/40
80/15 + 9/40 is 667/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
80/15 = 80 × 8/15 × 8 = 640/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
9/40 = 9 × 3/40 × 3 = 27/120 - Add the two like fractions:
640/120 + 27/120 = 640 + 27/120 = 667/120 - So, 80/15 + 9/40 = 667/120
In mixed form: 567/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+18/40 80/30+9/40 80/15+9/80 80/15+27/40 80/45+9/40 80/15+45/40 80/75+9/40 80/15+63/40