A mirror is 3 1/2 foot wide is hung in the center of a 9 foot long wall. How much wall space is left on each side of the mirror?

(9 - 3.5)/2 = ?

To find out how much wall space is left on each side of the mirror, we need to subtract the width of the mirror from the length of the wall and divide by 2.

First, let's convert the width of the mirror to a fractional form. The mirror is 3 1/2 feet wide, which can be written as 7/2 feet.

Next, subtract the width of the mirror from the length of the wall:

9 feet - 7/2 feet = (18/2 feet) - (7/2 feet) = 11/2 feet

Now we need to divide the remaining wall space equally on each side of the mirror. Since there are two sides, we divide the result from above by 2:

(11/2 feet) / 2 = 11/4 feet

Therefore, there is 11/4 feet of wall space left on each side of the mirror.