Add 80/5 and 70/9
1st number: 16 0/5, 2nd number: 7 7/9
80/5 + 70/9 is 214/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
80/5 = 80 × 9/5 × 9 = 720/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
70/9 = 70 × 5/9 × 5 = 350/45 - Add the two like fractions:
720/45 + 350/45 = 720 + 350/45 = 1070/45 - 1070/45 simplified gives 214/9
- So, 80/5 + 70/9 = 214/9
In mixed form: 237/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10+70/9 80/5+70/18 80/15+70/9 80/5+70/27 80/25+70/9 80/5+70/45 80/35+70/9 80/5+70/63