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?
First: subtract the length of the towel bar from the width of the door: 70 1/3 - ( 24 1/4 ) = 46 1/12
Now to place this in the center of the door place half of this length on each side of the towel bar:
46 1/12 / 2 = 23 1/24
The bar should be placed 23 1/24 centimeters from each edge of the door.