Change the fraction 1/5 to a percent

Converting 1/5 to the decimal fraction 0.20 may make understanding this problem a bit easier.

Since 1/5 = 0.20,

1/5 = 0.20(100^) = 20%.

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

=

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

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.