Question

Ian wants to run 4 1/2 miles to get ready for his upcoming race.

He has set up 3 markers the same distance apart to show how far he has run.
How far apart are the markers?
Each marker will be exactly miles apart.

A.27/2
B.3/2
C.15/2

Answer 1

First, notice that he is placing 3 markers which means that he will be dividing the race into 3 parts. Thus, we can just divide the total distance of the race by 3 to find the distance to find the distance between each marker.

Let's do this:

`(4 (1)/(2))/(3)`

`(4 + (1)/(2))/(3)`

`(4)/(3) + ((1)/(2))/(3)`

`(4)/(3) + (1)/(6)`

`(8 + 1)/(6)`

`(9)/(6) = (3 \cdot 3)/(3 \cdot 2) = (3)/(2)`

Our answer is 3/2, or Choice B.

Answer 2

You have to divide 4 1/2 by 3.
Convert 4 1/2 to decimal: 4.5
4.5/3=1.5
1.5 to fraction: 3/2
B is the answer