Reducing Fractions with GCF Techniques

This video tutorial explains how to find the greatest common factor (GCF) to simplify fractions. It begins with an introduction to factors and their role in multiplication and division. The tutorial then demonstrates how to find the GCF by listing factors of numbers and identifying the largest common factor. An example problem is provided, showing how to simplify the fraction 8/12 to 2/3 using the GCF. The video concludes with tips for remembering division facts and emphasizes the importance of understanding the relationship between multiplication and division.

What is the purpose of finding the greatest common factor (GCF) in fractions?

• To convert fractions to decimals

• To add fractions easily

• To simplify or reduce fractions

• To find the least common multiple

Which of the following pairs are factors of 12?

• 1 and 9

• 3 and 4

• 2 and 5

• 6 and 7

Tags

CCSS.4.OA.B.4

If 3 times 4 equals 12, what is 12 divided by 3?

• 4

• 5

• 2

• 3

Tags

CCSS.3.OA.B.6

What is the first step in finding the GCF of two numbers?

• Multiplying the numbers

• Subtracting the numbers

• Listing the factors of each number

• Adding the numbers

Which of the following is a factor of 8?

• 6

• 4

• 5

• 7

Tags

CCSS.4.OA.B.4

What is the GCF of 8 and 12?

• 2

• 6

• 3

• 4

How do you simplify the fraction 8/12 using the GCF?

• Divide both by 2

• Divide both by 3

• Divide both by 6

• Divide both by 4

What is the simplified form of 8/12?

• 1/2

• 2/3

• 3/4

• 4/5

If you forget a division fact, where can you look to find it?

• In a calculator

• In a multiplication table

• In a dictionary

• In the GCF chart you created

Tags

CCSS.3.OA.C.7

What should you do if you don't remember 12 divided by 4?

• Refer to the GCF chart

• Ask a friend

• Use a calculator

• Guess the answer

Tags

CCSS.4.NBT.B.6