Add 20/80 and 32/9
1st number: 20/80, 2nd number: 3 5/9
20/80 + 32/9 is 137/36.
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,
32/9 = 32 × 80/9 × 80 = 2560/720 - Add the two like fractions:
180/720 + 2560/720 = 180 + 2560/720 = 2740/720 - 2740/720 simplified gives 137/36
- So, 20/80 + 32/9 = 137/36
In mixed form: 329/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/80+32/9 20/80+64/9 20/80+32/18 60/80+32/9 20/80+96/9 20/80+32/27 20/80+32/45 20/80+32/63