Add 3/18 and 9/15
3/18 + 9/15 is 23/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
9/15 = 9 × 6/15 × 6 = 54/90 - Add the two like fractions:
15/90 + 54/90 = 15 + 54/90 = 69/90 - 69/90 simplified gives 23/30
- So, 3/18 + 9/15 = 23/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18+9/15 3/18+18/15 3/36+9/15 3/18+9/30 9/18+9/15 3/18+27/15 3/54+9/15 3/18+9/45 15/18+9/15 3/18+45/15 3/90+9/15 3/18+9/75 21/18+9/15 3/18+63/15