Add 20/3 and 84/90
1st number: 6 2/3, 2nd number: 84/90
20/3 + 84/90 is 38/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
20/3 = 20 × 30/3 × 30 = 600/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
84/90 = 84 × 1/90 × 1 = 84/90 - Add the two like fractions:
600/90 + 84/90 = 600 + 84/90 = 684/90 - 684/90 simplified gives 38/5
- So, 20/3 + 84/90 = 38/5
In mixed form: 73/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/3+84/90 20/6+84/90 60/3+84/90 20/9+84/90 20/15+84/90 20/21+84/90