#16-2: keegan wants to build a 3-inch border around his square building-block house. the measure of one side of the square house is s. write an expression to find the length of the border on each side.

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?