Add 80/9 and 20/4
1st number: 8 8/9, 2nd number: 5 0/4
80/9 + 20/4 is 125/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
80/9 = 80 × 4/9 × 4 = 320/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
20/4 = 20 × 9/4 × 9 = 180/36 - Add the two like fractions:
320/36 + 180/36 = 320 + 180/36 = 500/36 - 500/36 simplified gives 125/9
- So, 80/9 + 20/4 = 125/9
In mixed form: 138/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/9+40/4 80/18+20/4 80/9+20/8 80/9+60/4 80/27+20/4 80/9+20/12 80/45+20/4 80/63+20/4 80/9+20/28