Five cds, which is 1/8 of lisa's collection, were gifts. how many were not gifts? explain:

35

Step-by-step explanation:

if you multiply 5*8 you will get 40 where 5 is 1/8. From 40 you would subtract 5 from to get the remaining amount of CD's.

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.