A group of friends met for lunch and got four small pizzas to share each person had 1 1/3 pizzas how many friends went for lunch
1 1/3 = 1 + 1 / 3 = 3 / 3 + 1 / 3 = 4 / 3
four small pizzas / 1 1/3 pizzas = 4 / ( 4 / 3 ) = 3 ∙ 4 / 4 = 3
3 friends went for lunch.