Answer
$\dfrac{30}{50}$
or, $\dfrac{3}{5}$
Work Step by Step
We see that there are a total of $50$ students and this will be our denominator.
Also, there are $20$ female students and $10$ male student freshmen for a total of $30$ people.
This implies that we $30$ people -- our numerator.
That is, $\dfrac{30}{50}$
or, $\dfrac{3}{5}$
