What decimal number represents the number of cakes that were eaten?

Question

At a banquet, each cake was cut into 100 pieces. The guests ate 4 whole cakes and all but one piece of another.

Answer 1

They ate 4 whole cakes

 

They also ate 99/100 of a 5th cake, which is the same as .99 (99 hundreths)

 

Add these together to get 4.99 cakes.