Add 20/90 and 30/9
1st number: 20/90, 2nd number: 3 3/9
20/90 + 30/9 is 32/9.
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,
20/90 = 20 × 1/90 × 1 = 20/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
30/9 = 30 × 10/9 × 10 = 300/90 - Add the two like fractions:
20/90 + 300/90 = 20 + 300/90 = 320/90 - 320/90 simplified gives 32/9
- So, 20/90 + 30/9 = 32/9
In mixed form: 35/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/90+30/9 20/90+60/9 20/90+30/18 60/90+30/9 20/90+90/9 20/90+30/27 20/90+30/45 20/90+30/63