In ms. sanchez’s class, there are 20 female students and 12 male students. which of the following expresses the ratio of female students to male students in simplest form?

a. 3 to 5
b.20/12
c. 5/3
d. 20: 12

Female : male

20 : 12

Now simplify by dividing both numbers by 4

20/4 : 12/4

5 : 3

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

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