Question

What is 9/20 as a percent and a decimal

Answer 1

To write a fraction as a percent, first remember that a percent is a ratio of a number to 100. If we want to write $\frac{9}{20}$ as a percent, we need to find a fraction equivalent to $\frac{9}{20}$ that has a 100 in the denominator. We can do this by setting up a proportion.

$\frac{9}{20}$ = $\frac{n}{100}$

20n = 900

÷20     ÷20

   n = 45

Therefore, $\frac{9}{20}$ is equal to 45%.

To write $\frac{9}{20}$ as a decimal, we need to find a fraction equivalent to $\frac{9}{20}$ with a 100 in the denominator. Notice that if we multiply the numerator and the denominator of $\frac{9}{20}$ by 5, we get the equivalent fraction $\frac{45}{100}$ which we can now write as a decimal. Remember that the hundredths place is two places to the right of the decimal point. So we can write $\frac{45}{100}$ as 0.45.

Therefore, $\frac{9}{20}$ is equivalent to 0.45.

Answer 2

9 divided by 20 = 0.45,, 0.45 times 100= 45%