Halves, Thirds and Fourths! Fraction Fantastic!

Let’s talk about halves!This pizza is divided into two parts. When we divided something into two equal parts, we call each part a half.

Half Half

Let’s Talk about

Fractions If I ate 1 half of the pizza, I could write this as a fraction. A fraction represents part of a whole. In this case I ate 1 out of the 2 parts.

Half Half

How do I write a fraction?•When I make my fraction I put the part on top. This is called the numerator.•The number of parts goes on the bottom, this is called the denominator. •So I ate 1 part, so the number 1 goes on top.•There were 2 parts total, so the number 2 goes on the bottom.

Half Half

Numerator

Denominator

Part

Number of Parts

12

Now Let’s Talk About Thirds!•This pizza is divided into three equal parts.

•We call each of these parts a third.

•Remember a fraction represents part of a whole.

•So if I ate one piece this pizza, I would eat one third of it. We can write this as a fraction.

•In the denominator I would put the number 3 because there are 3 pieces total.

•In the numerator I would put 1, because I ate 1 piece.

1Numerator

Denominator

Part

Number of Parts3

Now Let’s Talk About Fourths!•This pizza is divided into four equal parts.

•We call each of these parts a fourth.

•Remember a fraction represents part of a whole.

•So if I ate one piece this pizza, I would eat one fourth of it. We can write this as a fraction.

•In the denominator I would put the number 4 because there are 4 pieces total.

•In the numerator I would put 1, because I ate 1 piece.

1Numerator

Denominator

Part

Number of Parts4

Let’s Review!

Which picture

shows one fourth?

A

B

C

Let’s Review!

Which picture

shows one third?

A

B

C

Let’s Review!

Which picture

shows one half?

A

B

C

Let’s Review!

Which picture

shows one third?

A

B

C

Let’s Review!

Which picture

shows one fourth?

A

B

C

Let’s Review!

Which picture

shows one half?

A

B

C

Try Again!

Correct!