Two 8-foot-long 2 x 4s are cut into sections of equal length. Board A is cut into 9 equal sections, qf which 5 are used. Therefore, z of the board has been used; of
it remains. Board B is cut into 7 equal sections, of which 4 are used. That means
of the board has been used; of it remains. Which has the longest remaining
section, Board A or Board B?