Add 18/36 and 3/80
18/36 + 3/80 is 43/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
18/36 = 18 × 20/36 × 20 = 360/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720 - Add the two like fractions:
360/720 + 27/720 = 360 + 27/720 = 387/720 - 387/720 simplified gives 43/80
- So, 18/36 + 3/80 = 43/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36+6/80 18/72+3/80 54/36+3/80 18/36+9/80 90/36+3/80 18/36+15/80 18/36+21/80