Add 80/15 and 10/9
1st number: 5 5/15, 2nd number: 1 1/9
80/15 + 10/9 is 58/9.
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,
10/9 = 10 × 5/9 × 5 = 50/45 - Add the two like fractions:
240/45 + 50/45 = 240 + 50/45 = 290/45 - 290/45 simplified gives 58/9
- So, 80/15 + 10/9 = 58/9
In mixed form: 64/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+20/9 80/30+10/9 80/15+10/18 80/15+30/9 80/45+10/9 80/15+10/27 80/15+50/9 80/75+10/9 80/15+10/45 80/15+70/9 80/15+10/63