Add 10/15 and 15/90
10/15 + 15/90 is 5/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 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 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 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 + 15/90 = 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+15/90 10/15+30/90 10/30+15/90 30/15+15/90 10/15+45/90 10/45+15/90 50/15+15/90 10/15+75/90 10/75+15/90 70/15+15/90