Add 1/15 and 3/90
1/15 + 3/90 is 1/10.
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,
1/15 = 1 × 6/15 × 6 = 6/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
3/90 = 3 × 1/90 × 1 = 3/90 - Add the two like fractions:
6/90 + 3/90 = 6 + 3/90 = 9/90 - 9/90 simplified gives 1/10
- So, 1/15 + 3/90 = 1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15+3/90 1/15+6/90 1/30+3/90 3/15+3/90 1/15+9/90 1/45+3/90 5/15+3/90 1/15+15/90 1/75+3/90 7/15+3/90 1/15+21/90