Answer:
5/6
Explanation:
You write the question as such: 5/9 divided by 2/3. 
After that, you keep the first fraction, flip the sign and the fraction. 
You will get: 5/9 multiplied by 3/2. 
When you get this, you then cross multiply and simplify as such. 
5/3 multiplied by 1/2. 
5/6 would be your solution.