Add 4/15 and 15/90
4/15 + 15/90 is 13/30.
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,
4/15 = 4 × 6/15 × 6 = 24/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Add the two like fractions:
24/90 + 15/90 = 24 + 15/90 = 39/90 - 39/90 simplified gives 13/30
- So, 4/15 + 15/90 = 13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15+15/90 4/15+30/90 4/30+15/90 12/15+15/90 4/15+45/90 4/45+15/90 20/15+15/90 4/15+75/90 4/75+15/90 28/15+15/90