Acarpenter is framing a window with wood trim where the length of the window is 9 and 1/3 feet. if the width of the window is 6 and 3/ 4 feet, how many feet of the wood is needed to frame the window? write your answer as a proper or improper fraction

We need the perimeter of the window for framing

The window is in the shape of a rectangle with the height of  feet and width of . The diagram of the shape is shown below

The perimeter of a shape is obtained by adding up the length of all the sides that form the shape.

The perimeter of the window is  =  

We have two whole numbers 18 and 12 and two fractions  and 

Adding the two fractions that have different denominator 
, which is an improper fraction which we can change into a mixed number 

So the perimeter of the window is 
 

and the length of wood needed for the frame is  feet