Add 81/3 and 28/15
1st number: 27 0/3, 2nd number: 1 13/15
81/3 + 28/15 is 433/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 15 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
81/3 = 81 × 5/3 × 5 = 405/15 - Likewise, for the 2nd fraction, since 15 × 1 = 15,
28/15 = 28 × 1/15 × 1 = 28/15 - Add the two like fractions:
405/15 + 28/15 = 405 + 28/15 = 433/15 - So, 81/3 + 28/15 = 433/15
In mixed form: 2813/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/3+56/15 81/6+28/15 81/3+28/30 81/3+84/15 81/9+28/15 81/3+28/45 81/15+28/15 81/3+28/75 81/21+28/15