Add 18/9 and 5/80
1st number: 2 0/9, 2nd number: 5/80
18/9 + 5/80 is 33/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 9 × 80 = 720,
18/9 = 18 × 80/9 × 80 = 1440/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
5/80 = 5 × 9/80 × 9 = 45/720 - Add the two like fractions:
1440/720 + 45/720 = 1440 + 45/720 = 1485/720 - 1485/720 simplified gives 33/16
- So, 18/9 + 5/80 = 33/16
In mixed form: 21/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+5/80 18/9+10/80 54/9+5/80 18/9+15/80 18/27+5/80 90/9+5/80 18/9+25/80 18/45+5/80 18/9+35/80 18/63+5/80