Add 80/15 and 4/9
1st number: 5 5/15, 2nd number: 4/9
80/15 + 4/9 is 52/9.
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,
80/15 = 80 × 3/15 × 3 = 240/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
4/9 = 4 × 5/9 × 5 = 20/45 - Add the two like fractions:
240/45 + 20/45 = 240 + 20/45 = 260/45 - 260/45 simplified gives 52/9
- So, 80/15 + 4/9 = 52/9
In mixed form: 57/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+8/9 80/30+4/9 80/15+4/18 80/15+12/9 80/45+4/9 80/15+4/27 80/15+20/9 80/75+4/9 80/15+4/45 80/15+28/9 80/15+4/63