To express 80% as a fraction in reduced form, we can start by writing 80% as \( \frac{80}{100} \).
Next, we need to simplify \( \frac{80}{100} \):
- Find the greatest common divisor (GCD) of 80 and 100, which is 20.
- Divide both the numerator and the denominator by 20:
\[ \frac{80 \div 20}{100 \div 20} = \frac{4}{5} \]
Thus, 80% as a fraction in reduced form is \( \frac{4}{5} \).
The correct option from the choices provided is:
StartFraction 4 Over 5 EndFraction