Add 20/80 and 36/9
1st number: 20/80, 2nd number: 4 0/9
20/80 + 36/9 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
20/80 = 20 × 9/80 × 9 = 180/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
36/9 = 36 × 80/9 × 80 = 2880/720 - Add the two like fractions:
180/720 + 2880/720 = 180 + 2880/720 = 3060/720 - 3060/720 simplified gives 17/4
- So, 20/80 + 36/9 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/80+36/9 20/80+72/9 20/80+36/18 60/80+36/9 20/80+36/27 20/80+36/45 20/80+36/63