Add 5/15 and 16/9
1st number: 5/15, 2nd number: 1 7/9
5/15 + 16/9 is 19/9.
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,
5/15 = 5 × 3/15 × 3 = 15/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
16/9 = 16 × 5/9 × 5 = 80/45 - Add the two like fractions:
15/45 + 80/45 = 15 + 80/45 = 95/45 - 95/45 simplified gives 19/9
- So, 5/15 + 16/9 = 19/9
In mixed form: 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/15+16/9 5/15+32/9 5/30+16/9 5/15+16/18 5/15+48/9 5/45+16/9 5/15+16/27 25/15+16/9 5/15+80/9 5/75+16/9 5/15+16/45 35/15+16/9 5/15+16/63