Add 20/9 and 8/80
1st number: 2 2/9, 2nd number: 8/80
20/9 + 8/80 is 209/90.
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,
20/9 = 20 × 80/9 × 80 = 1600/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
8/80 = 8 × 9/80 × 9 = 72/720 - Add the two like fractions:
1600/720 + 72/720 = 1600 + 72/720 = 1672/720 - 1672/720 simplified gives 209/90
- So, 20/9 + 8/80 = 209/90
In mixed form: 229/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+8/80 20/9+16/80 20/18+8/80 60/9+8/80 20/9+24/80 20/27+8/80 20/9+40/80 20/45+8/80 20/9+56/80 20/63+8/80