3. Write the following fractions as decimal fractions whose denominators are 100:Viết các phân số...

Lastly, for the fraction $\frac{18}{200}$, we can simplify it by dividing both the numerator and denominator by 2 to get $\frac{9}{100}$. So, $\frac{18}{200}$ as a decimal fraction with a denominator of 100 is 0.09.

Therefore, $\frac{500}{1000}$ as a decimal fraction with a denominator of 100 is 0.50.

For the fraction $\frac{500}{1000}$, we can simplify it by dividing both the numerator and denominator by 10 to get $\frac{50}{100}$.

So, $\frac{6}{25} \times \frac{4}{4} = \frac{24}{100}$. Therefore, $\frac{6}{25}$ as a decimal fraction with a denominator of 100 is 0.24.

For the fraction $\frac{6}{25}$, to convert it to a decimal fraction with a denominator of 100, we need to multiply both the numerator and the denominator by 4.