why do we need fractions?. have you ever used a measuring cup while helping your parents make...

Why do we need fractions?

Have you ever used a measuring cup while helping your parents make dinner?

Have you ever had to share a candy bar or a piece of cake with your brother or sister?

Can fractions be used to describe a part?

By Anita Blakney

Overview

Fractions are a part of a whole or one. Identify and define parts of a fraction. Identify and name fractions.

Each whole figure represents ONE whole.

½

This picture represents the fraction

Denominator Tells how many

equal parts

NumeratorTells how many

parts are shaded

Fractions are equal parts of a whole.

Notice how all of the circles are the same size even though they are split into equal parts.

12

12

14

14

14

14

13

13

13

22

44

33

How many parts are in each whole shape? The fractions below describes the entire figure and it is equal to 1 (one whole).

How many eggs are in the picture?

How many are yellow?

What fraction can we write to show how many eggs are yellow?

Name the fraction

25

34

14

Extra Practice:http://www.thatquiz.org/tq/practice.html?idfraction

Sharing is another way that we use fractions.

My family is having pizza tonight. All of the kids want cheese pizza and we have six kids in all. How much pizza will we all get?

161

6

16

161

6

16

Summary

Questions