To find the total fractional portion of parks that have flagpoles, we can add the fraction of parks that already have flagpoles to the fraction of parks that will get new flagpoles.
- Currently, \( \frac{1}{3} \) of the parks have flagpoles.
- The city plans to install flagpoles in another \( \frac{1}{3} \) of the parks.
Now, we add the two fractions:
\[ \frac{1}{3} + \frac{1}{3} = \frac{2}{3} \]
So, the total fractional portion of parks that have flagpoles is \( \frac{2}{3} \).