Add 80/3 and 21/5
1st number: 26 2/3, 2nd number: 4 1/5
80/3 + 21/5 is 463/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
80/3 = 80 × 5/3 × 5 = 400/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
21/5 = 21 × 3/5 × 3 = 63/15 - Add the two like fractions:
400/15 + 63/15 = 400 + 63/15 = 463/15 - So, 80/3 + 21/5 = 463/15
In mixed form: 3013/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/3+42/5 80/6+21/5 80/3+21/10 80/3+63/5 80/9+21/5 80/3+21/15 80/15+21/5 80/3+21/25 80/21+21/5 80/3+21/35