Fractions and Fractions and

DivisionDivisionLesson 9-2Power Point made by: Jennifer Allen

Purpose

You have already learned how to represent parts of a whole with a fraction. Today you will learn how fractions are related to division.

ConnectCan 3 people share 2 things equally?

Yes, if the wholes are divided into equal parts

ProblemHow can you divide 2 muffins among 3 people equally? What fraction shows the part of 1 muffin each person gets?

Draw pictures to show your answers. (There is more than one correct way!)

Use Drawings!

Draw 2 equal-sized circles on a piece of paper. Each circle will represent a muffin.

Divide each circle into 3 equal parts.

How many parts does each muffin have?

How many parts will each person get?

3

How many parts will each person get? 2

So, how much of a muffin does each person get?

Each person will get 2/3 of a muffin.

You can also write this by thinking of division. Dividing 2 muffins for 3 people is the same as saying 2 ÷ 3.

2 ÷ 3 =

Saying 2 ÷ 3 is the same as saying two-thirds.

When you see the line of a fraction, it

means “divided by.”

How can you use a number line to represent fractions?

One way to find a point on a number line

that represents a fraction is to divide a unit

segment (0 to 1) into equal parts. To

find ,divide the segment into 5 equal

parts.