Add 40/3 and 28/15
1st number: 13 1/3, 2nd number: 1 13/15
40/3 + 28/15 is 76/5.
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,
40/3 = 40 × 5/3 × 5 = 200/15 - Likewise, for the 2nd fraction, since 15 × 1 = 15,
28/15 = 28 × 1/15 × 1 = 28/15 - Add the two like fractions:
200/15 + 28/15 = 200 + 28/15 = 228/15 - 228/15 simplified gives 76/5
- So, 40/3 + 28/15 = 76/5
In mixed form: 151/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/3+28/15 40/3+56/15 40/6+28/15 40/3+28/30 40/3+84/15 40/9+28/15 40/3+28/45 40/15+28/15 40/3+28/75 40/21+28/15