Answer
$\frac{4}{5}$
Work Step by Step
A percent means "out of 100".
So, first write the percent as a fraction out of 100. $\frac{80}{100}$
Then, reduce the numerator and denominator by dividing by 10.
80 $\div$ 10 = 8
100 $\div$ 10 = 10
Now you have $\frac{8}{10}$
Then, reduce it more by dividing the numerator and denominator by 2.
8 $\div$ 2 = 4
10 $\div$ 2 = 5
The answer is $\frac{4}{5}$
