Add 3/15 and 9/30
3/15 + 9/30 is 1/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
3/15 = 3 × 2/15 × 2 = 6/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
9/30 = 9 × 1/30 × 1 = 9/30 - Add the two like fractions:
6/30 + 9/30 = 6 + 9/30 = 15/30 - 15/30 simplified gives 1/2
- So, 3/15 + 9/30 = 1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15+9/30 3/15+18/30 3/30+9/30 3/15+9/60 9/15+9/30 3/15+27/30 3/45+9/30 3/15+9/90 3/15+45/30 3/75+9/30 21/15+9/30 3/15+63/30