Add 30/15 and 30/9
1st number: 2 0/15, 2nd number: 3 3/9
30/15 + 30/9 is 16/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
30/15 = 30 × 3/15 × 3 = 90/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
30/9 = 30 × 5/9 × 5 = 150/45 - Add the two like fractions:
90/45 + 150/45 = 90 + 150/45 = 240/45 - 240/45 simplified gives 16/3
- So, 30/15 + 30/9 = 16/3
In mixed form: 51/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15+30/9 30/15+60/9 30/15+30/18 90/15+30/9 30/15+90/9 30/45+30/9 30/15+30/27 30/75+30/9 30/15+30/45 30/15+30/63