Add 40/15 and 81/5
1st number: 2 10/15, 2nd number: 16 1/5
40/15 + 81/5 is 283/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
40/15 = 40 × 1/15 × 1 = 40/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
81/5 = 81 × 3/5 × 3 = 243/15 - Add the two like fractions:
40/15 + 243/15 = 40 + 243/15 = 283/15 - So, 40/15 + 81/5 = 283/15
In mixed form: 1813/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+81/5 40/30+81/5 40/15+81/10 40/45+81/5 40/15+81/15 40/75+81/5 40/15+81/25 40/15+81/35