Lucinda baked a cherry pie, an apple pie and a rhubarb pie. The pies were equal in size. Lucinda cut the apple pie into 6 slices, the cherry pie into 8 pieces and the rhubarb pie into 5 pieces. The family ate 4 pieces of each pie. what fraction of the cherry pie was eaten? what fraction of the apple pie was eaten? what fraction of the rhubarb pie was eaten? Find a common denominator to compare the fractions. Which pie had the most left?