You want to place a towel bar that is 24 1⁄4 centimeters long in the center of a door that is 70 1⁄3 centimeters wide. how far should you place the bar from each edge of the door? (write the answer as a mixed number.)

In order for me to solve this I converted it to decimals, but I will make it a mixed number at the end. 

First you need to find out how much space will be left with the bar in. 
70.33-24.24=46.08
Then you need to figure out how far in the bar should be on each side. 
46.08/2=23.04

Your answer is 23.04 or 23 1/25

Hope this helps.