Add 9/15 and 30/45
9/15 + 30/45 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
9/15 = 9 × 3/15 × 3 = 27/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
30/45 = 30 × 1/45 × 1 = 30/45 - Add the two like fractions:
27/45 + 30/45 = 27 + 30/45 = 57/45 - 57/45 simplified gives 19/15
- So, 9/15 + 30/45 = 19/15
In mixed form: 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+30/45 9/15+60/45 9/30+30/45 9/15+30/90 27/15+30/45 9/15+90/45 9/45+30/45 45/15+30/45 9/75+30/45 63/15+30/45