Harry has £18. He was hungry so he
spent 1/3 of the money on food.
How much did he spend?

There are 400 students in a school. 2/5 play
football and the rest play cricket.
How many play cricket?

There are 300 chocolates in a bag. 2/3 are 
are for Tom and the rest for Tony.
How many chocolates are for Tony?