Add 36/9 and 80/5
1st number: 4 0/9, 2nd number: 16 0/5
36/9 + 80/5 is 20/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
36/9 = 36 × 5/9 × 5 = 180/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
80/5 = 80 × 9/5 × 9 = 720/45 - Add the two like fractions:
180/45 + 720/45 = 180 + 720/45 = 900/45 - 900/45 simplified gives 20/1
- So, 36/9 + 80/5 = 20/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/9+80/5 36/18+80/5 36/9+80/10 36/27+80/5 36/9+80/15 36/45+80/5 36/9+80/25 36/63+80/5 36/9+80/35