Add 3/15 and 5/90
3/15 + 5/90 is 23/90.
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,
3/15 = 3 × 6/15 × 6 = 18/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
5/90 = 5 × 1/90 × 1 = 5/90 - Add the two like fractions:
18/90 + 5/90 = 18 + 5/90 = 23/90 - So, 3/15 + 5/90 = 23/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15+5/90 3/15+10/90 3/30+5/90 9/15+5/90 3/15+15/90 3/45+5/90 3/15+25/90 3/75+5/90 21/15+5/90 3/15+35/90