GCF Simplifying Fractions

Presentation

•

Mathematics

•

3rd - 5th Grade

•

Hard

Joseph Anderson

FREE Resource

9 Slides • 8 Questions

Greatest Common Factor and Simplifying Fractions

(GCF)

factors

numbers that multiply together to get a product

simplify

finding the smallest denominator for a fraction

ATTENTION! On the next slide, the video link may say "video unavailable". If it does, just click on the part that says "watch video on YouTube" and it will play.

You will need paper and pencil for the rest of the slides. Be prepared!

...go get your paper....like NOW!

Multiple Choice

What are the factors of 16? Make a T-chart to help you.

1,2,4,8,16

1,2,8,16

16,32,48

Multiple Choice

What are the factors of 12? Make a T-chart to help you.

12,24,36

1,2,3,4,6,12,

1,2,4,6,12

GCF

Greatest Common Factor (see example)

Multiple Choice

What is the GCF of 24 and 36?

First, make T-charts for the factors or 24 and 36, then circle the biggest one they have in common.

Multiple Choice

What is the GCF of 12 and 16?

Multiple Choice

Simplify this fraction: 3⁄12

(Start by finding the GCF of 3 and 12. Then divide the top and bottom of the fraction by the GCF.)

1/3

1/4

1/6

Let's Review!

Get ready to use that brain!

Multiple Choice

What are the factors of 40? Make a T-chart like we did in class.

1,2,4,10,20,40

1,2,4,5,8,10.20,40

1,2,5,8,40

Multiple Choice

What are the factors of 64? Make a T-chart to help you.

1,2,4,6,32,64

1,2,4,8,16,32,64

1,2,8,32,64

Multiple Choice

Using the T-charts from the previous two problems, what is the Greatest Common Factor (GCF) of 40 and 64?

All Done! Now mark this assignment as "done" on Classroom and go to Freckle and work on FRACTIONS in the adaptive pathway. If you need your password, check back in your email to see from the last time it was sent to you.

Greatest Common Factor and Simplifying Fractions

(GCF)

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