All frames are one inch wide.
The backing material is a cloth material that covers the back of the picture and extends to the outside edges of the frame. Write a test plan as well before you write out or type the code. Direct the user to input the length and width measurements in whole inches. Make sure that your answer is explained with a clearly worded, explanatory output message as well. The length and width that is entered by the user will be the outside dimensions of the picture, not including the frame.