Converting 128% to Its Decimal Form: Percentage Mathematics

To convert the percentage 128% to a fraction, we begin by expressing 128% as a fraction over 100:

$128\% = \frac{128}{100}$

Next, we simplify the fraction $\frac{128}{100}$. We do this by finding the greatest common divisor (GCD) of 128 and 100. The GCD of 128 and 100 is 4.

We divide both the numerator and the denominator by their GCD:

$\frac{128 \div 4}{100 \div 4} = \frac{32}{25}$

Therefore, 128% is equal to the fraction $\frac{32}{25}$.

Thus, in the context of the provided multiple-choice answers, the correct choice is $\frac{32}{25}$, which corresponds to choice 3.

The simplified fraction representation of 128% is $\frac{32}{25}$.