Red and grey bricks were used to build a decorative wall. the was there were 140 bricks used in all. how many red bricks were used? a. 28 b. 40 c. 20 d. 100

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.

2.83941151 would be the answer you're looking for! : )