You need to lay a tile to create a frieze above a doorway. The tile measures 2 7/8 inches by 2 7/8 inches. If the doorway is 35 1/2 inches wide, how many pieces of tile are needed?

Answer 1

35 1/2 divided by 2 7/8

= 71/2/23/8

= (71/2)(8/23)

= 284/23

= 12 8/23 tiles

need 13 tiles