Add 10/15 and 3/18
10/15 + 3/18 is 5/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
10/15 = 10 × 6/15 × 6 = 60/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Add the two like fractions:
60/90 + 15/90 = 60 + 15/90 = 75/90 - 75/90 simplified gives 5/6
- So, 10/15 + 3/18 = 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15+3/18 10/15+6/18 10/30+3/18 10/15+3/36 30/15+3/18 10/15+9/18 10/45+3/18 10/15+3/54 50/15+3/18 10/15+15/18 10/75+3/18 10/15+3/90 70/15+3/18 10/15+21/18