Add 80/90 and 2/9
80/90 + 2/9 is 10/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
80/90 = 80 × 1/90 × 1 = 80/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
2/9 = 2 × 10/9 × 10 = 20/90 - Add the two like fractions:
80/90 + 20/90 = 80 + 20/90 = 100/90 - 100/90 simplified gives 10/9
- So, 80/90 + 2/9 = 10/9
In mixed form: 11/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90+4/9 80/90+2/18 80/90+6/9 80/90+2/27 80/90+10/9 80/90+2/45 80/90+14/9 80/90+2/63