Fractions

1 / 27

# Fractions - PowerPoint PPT Presentation

Fractions. A fraction is a part of a whole. Parts of a Fraction. 3. = the number of parts. 4. = the total number of parts that equal a whole. Pull out your fraction circles. Answer the following questions on your paper. What is represented by one piece of the: Purple 1 whole

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about ' Fractions' - kasa

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

### Fractions

A fraction is a part of a whole.

Parts of a Fraction

3

= the number of parts

4

= the total number of parts that equal a whole

• What is represented by one piece of the:
• Purple

1 whole

• Blue

• Yellow

• Orange

½

• Green

• Pink

¼

We are going to see what adding fractions looks like!

Add 3 blue pieces to 4 blue pieces.

What does the 8 as the denominator mean?

+

=

How much more do we need until we have one whole?

Look back into your bag of pieces. Can we replace the 4 blue pieces with a piece of a different color without changing the amount?

Now, add 1 blue piece to 3 blue pieces.

+

=

+

Think of these as leftover pieces of pizza.. What is simpler to understand?

Now, add 1 blue piece to 3 blue pieces.

+

=

+

Now get out 4 yellow pieces. Add them together.

What does the 6 as the denominator mean?

4/6

• 1/6 + 1/6 + 1/6 + 1/6 = ?

Use two pieces from your bag to replace these 4 pieces. What pieces do you find?

Two green, or 2/3

Simplest Form

What did we just find?

We are going to work as a group since we will need everyone’s yellow pieces.

Add 3 pinkpieces to 2 pinkpieces.

What does the 4 as the denominator mean?

=

+

How much more do we need until we have one whole?

1

+

=

Now, add 3 pinkpieces to 3 pinkpieces.

=

+

How much more do we need until we have one whole?

1

+

=

Put all of your fraction circles away.

Today, we learned how to add fractions that:

1) Can be simplified

2) Have a sum of more than one

Tomorrow, we will learn how to add fractions that have different denominators.

If you finish early, get a sheet of paper and work on this ICEE problem. 

Mark had a pizza party tonight. He wants to know how much pizza he has left in all. He has 3/8 peperoni pizza left, 5/8 mushroom pizza left, 7/8 pineapple pizza, 1 whole cheese pizza, and ½ a sausage pizza left. Write both a mixed number and an improper fraction to help Mark see how much pizza he has leftover.

Can I add these pieces together?

1) Is 4 or 8 bigger?

2) Can 4 go into 8?

2) How many times?

x2

+

=

x2

1) Is 3 or 4 bigger?

4, 8, 12, 16, 20, 24, 28, 32

2) Can 3 go into 4?

3) List the multiples of 4.

+

=

4) Can 3 go into any?

5) How many times can 3 go into 12?

6) How many times can 4 go into 12?

4, 8, 12, 16, 20, 24, 28, 32

X4

X3

=

+

4

3

8) Can I simplify?

+

=

1) Is 3 or 5 bigger?

5, 10, 15, 20, 25, 30, 35, 40

2) Can 3 go into 5?

3) List the multiples of 5.

+

=

4) Can 3 go into any?

5) How many times can 3 go into 15?

6) How many times can 5 go into 15?

5, 10, 15, 20, 25, 30, 35, 40

X5

X3

=

+

5

3

8) Can I simplify?

10

6_

16

1

+

1

=

=

15

15

15

15

1) Circle the biggest denominator.

2) Can the other denominator fit?

3) List the multiples of the biggest denominator.

4) Find the smallest multiple that the other denominator(s) can fit into.

5) Multiply both the numerator and denominator of all fractions to get a common denominator.

6) Add the numerators of the new fractions.

7) Simplify if you can.