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A woman wants to stack two small bookcases beneath a window that is 26 inches from the floor. The larger bookcase is 14(1/2) inches tall. The other bookcase is 8(3/4) inches tall. How tall will the two bookcases be when they are stacked together?

A $6868_w29_h38.png$ inches tall

Add to solve. The height of the window from the floor is not needed in this equation. It is extra information. You only need to add the heights of the two bookcases. Change the fractions so that they have a common denominator. After you add, simplify the fraction.