Simplifying Fractions: Day 3 Challenges

In this video tutorial, the teacher continues the lesson on simplifying fractions by finding the greatest common factor (GCF). The video covers three examples: simplifying 3/12, 20/30, and 9/18. For each example, the teacher identifies the factors of the numerator and denominator, finds the GCF, and simplifies the fraction. The teacher also provides tips on recognizing patterns and simplifying fractions mentally as students become more proficient.

What is the first step in simplifying fractions?

• Finding the least common multiple

• Finding the greatest common factor

• Subtracting the numerator from the denominator

• Adding the numerator and denominator

What are the factors of 3?

• 1, 3, and 6

• 1 and 3

• 1, 2, 3, and 6

• 1, 2, and 3

Tags

CCSS.4.OA.B.4

What is the greatest common factor of 3 and 12?

• 3

• 2

• 1

• 4

What is 3/12 simplified?

• 1/2

• 1/3

• 1/4

• 1/6

What is the greatest common factor of 20 and 30?

• 15

• 10

• 5

• 2

What is 20/30 simplified?

• 3/4

• 1/2

• 2/5

• 2/3

What are the factors of 9?

• 1, 3, 6, and 9

• 1, 2, and 9

• 1, 3, and 9

• 1, 2, 3, and 9

Tags

CCSS.4.OA.B.4

What is the greatest common factor of 9 and 18?

• 1

• 3

• 6

• 9

What is 9/18 simplified?

• 1/2

• 1/3

• 1/4

• 1/5

What should you do if you don't find the greatest common factor initially?

• Multiply the fraction

• Stop simplifying

• Add the numerator and denominator

• Use a different factor and continue simplifying