In order to write frac{18}{25} as a decimal, we need to find a fraction equivalent tofrac{18}{25} with a 100 in the denominator. Notice that if we multiply the numerator and the denominator of frac{18}{25} by 4, we get the equivalent fraction frac{72}{100} which we can now write as a decimal. Remember that the hundredths place is 2 places to the right of the decimal point. Therefore, we can write frac{72}{100} as 0.72.

To write a fraction to a percent, first remember that a percent is a ratio of a number to 100 so to write frac{18}{25} as a percent, we need to find a fraction equivalent to frac{18}{25} that has a 100 in the denominator. We can . do this by setting up a proportion.

frac{18}{25}frac{n}{100}

Now, we can use cross products to find the missing value.

25n = 1800

÷ 25     ÷25

n = 72%

Therefore, frac{18}{25} is equal to 72%.