Your group is going to Pizzeria Verona to celebrate that summer is coming![br][br]But... in pizzeria Verona, you can buy portions or whole pizzas. [br][br]1) One portion costs 1 euro. [br][br]2) One whole pizza costs 6 euros, and it has 8 portions. [br][br][b]Question 1:[/b] Talk with your group: how many portions does each of you want to eat?[br][br][b]Question 2:[/b] You don't want to waste any money... how should you buy the portions to make it cheap?[br][br]Later you will have to present your solution to the class![br][br][i]Tip: Think about it... how can you express mathematically "one portion of a pizza"?[/i]

[b]In the previous problem:[/b][br]How many portions can you obtain from a whole pizza?[br]And from two pizzas?[br]What about five pizzas?[br][br]What fraction of a pizza is 1 portion?[br]What fraction of a pizza are 6 portions?[br]What fraction of a pizza are 12 portions?[br][br][br][b]Definition:[br][/b]A fraction is [b]proper [/b]if the numerator is [b]smaller than[/b] the denominator. [br][br]A fraction is [b]improper[/b] if the numerator is [b]greather than [/b]the denominator.[br][br][br][b]Example:[/b][br][br]Having [math]\text{\frac{10}{8}}[/math] of pizza is the same as having 1 whole pizza and [math]\text{\frac{2}{8}}[/math] from another one![br][br][b]Definition:[/b][br][br]A [b]mixed number [/b]is a way to represent improper fractions, counting the number of units and the portions left.[br][br][b]Example:[/b][br]The mixed number [math]\text{1\frac{2}{8}}[/math] represents one whole pizza and [math]\text{\frac{2}{8}}[/math] of a pizza.