Answer: 60%
Step-by-step explanation: To write a fraction as a percent, first remember that a percent is a ratio of a number to 100.
So to write 18/30 as a percent, we need to find a fraction equivalent to 18/20 that has a 100 in the denominator. We can do this by setting up a proportion.
So we have [tex]\frac{18}{30} = \frac{n}{100}[/tex] where n is our variable.
Now, we can use cross products to find the missing value. So we have 18 x 100 which is 1800 is equal to 30 x n or 30n. Next, dividing both sides of the equation by 30, we have 60 = n.
So 18/30 is equal to 60/100 or 60%.