The Solution:
Let the quantity of a pizza be represented with p.
So that the available pizza for the 3 people is obtained as below:
The equal portion for each of the 3 people can be obtained by dividing the available pizza by 3. That is,
Which becomes
So, each of the 3 people will get 2/9 of a pizza.
Therefore, the correct answer is 2/9 of a pizza.