Download presentation

Presentation is loading. Please wait.

1
Greatest Common Factor

2
**12 8 1 × 12 1 × 8 2 × 6 2 × 4 3 × 4 Greatest Common Factor**

Step 1: Make a “T-Chart” for both numbers. Step 2: Look for common factors between both numbers. Step 3: Circle the greatest factor that both numbers have in common. Step 4: This is the GCF. Greatest Common Factor Find the Greatest Common Factor (GCF) of 12 and 8. 12 8 1 × 12 1 × 8 2 × 6 2 × 4 3 × 4 The GCF of 12 and 8 is 4

3
**Step 1: Make a “T-Chart” for both numbers.**

Step 2: Look for common factors between both numbers. Step 3: Circle the greatest factor that both numbers have in common. Step 4: This is the GCF. Greatest Common Factor Find the Greatest Common Factor (GCF) of 16 and 24. 16 24 1 × 16 1 × 24 2 × 8 2 × 12 4 × 4 3 × 8 4 × 6 The GCF of 16 and 24 is 8

4
**Step 1: Make a “T-Chart” for both numbers.**

Step 2: Look for common factors between both numbers. Step 3: Circle the greatest factor that both numbers have in common. Step 4: This is the GCF. Greatest Common Factor Find the Greatest Common Factor (GCF) of 30 and 48. 30 48 1 × 30 1 × 48 2 × 15 2 × 24 3 × 10 3 × 16 5 × 6 4 × 12 6 × 8 The GCF of 30 and 48 is 6

5
**Step 1: Make a “T-Chart” for both numbers.**

Step 2: Look for common factors between both numbers. Step 3: Circle the greatest factor that both numbers have in common. Step 4: This is the GCF. Greatest Common Factor Find the Greatest Common Factor (GCF) of 32 and 40. 32 40 1 × 32 1 × 40 2 × 16 2 × 20 4 × 8 4 × 10 5 × 8 The GCF of 32 and 40 is 8

6
**Greatest Common Factor**

Step 1: Make a “T-Chart” for all 3 numbers. Step 2: Look for common factors between all 3 numbers. Step 3: Circle the greatest factor that all 3 numbers have in common. Step 4: This is the GCF. Greatest Common Factor Find the Greatest Common Factor (GCF) of 18, 36, and 45. 18 36 45 1 × 18 1 × 36 1 × 45 2 × 9 2 × 18 3 × 15 3 × 6 3 × 12 5 × 9 4 × 9 6 × 6 The GCF of 18, 36, and 45 is 9

7
**Greatest Common Factor and Fractions**

Step 1: Make a “T-Chart” for numerator and the denominator. Step 2: Look for common factors between both numbers. Step 3: Circle the greatest factor that both numbers have in common. Step 4: This is the GCF. Greatest Common Factor and Fractions You can find the Greatest Common Factor of a fraction’s numerator and denominator ,too. What is the GCF of ? 9 12 9 12 1 × 9 1 × 12 3 × 3 2 × 6 3 × 4 The GCF of is 3. 9 12

8
**Greatest Common Factor and Fractions**

Step 1: Make a “T-Chart” for numerator and the denominator. Step 2: Look for common factors between both numbers. Step 3: Circle the greatest factor that both numbers have in common. Step 4: This is the GCF. Greatest Common Factor and Fractions You can find the Greatest Common Factor of a fraction’s numerator and denominator ,too. What is the GCF of ? 25 30 25 30 1 × 25 1 × 30 5 × 5 2 × 15 3 × 10 5 × 6 The GCF of is 5. 25 30

9
**Greatest Common Factor and Fractions**

Step 1: Make a “T-Chart” for numerator and the denominator. Step 2: Look for common factors between both numbers. Step 3: Circle the greatest factor that both numbers have in common. Step 4: This is the GCF. Greatest Common Factor and Fractions You can find the Greatest Common Factor of a fraction’s numerator and denominator ,too. What is the GCF of ? 24 32 24 36 1 × 24 1 × 32 2 × 12 2 × 16 3 × 8 4 × 8 4 × 6 The GCF of is 8. 24 32

10
**Use “T-Charts” to find the GCF.**

Your Turn! Use “T-Charts” to find the GCF. and 30 and 45 12 30 15 45 1 × 12 1 × 30 1 × 15 1 × 45 2 × 6 2 × 15 3 × 5 3 × 15 3 × 4 3 × 10 5 × 9 5 × 6 GCF: 6 GCF: 15

11
**Use “T-Charts” to find the GCF.**

Your Turn! Use “T-Charts” to find the GCF. 18 36 21 35 3. 4. 18 36 21 35 1 × 18 1 × 36 1 × 21 1 × 35 2 × 9 2 × 18 3 × 7 5 × 7 3 × 6 3 × 12 4 × 9 6 × 6 GCF: 18 GCF: 7

12
**Use “T-Charts” to find the GCF.**

Your Turn! Use “T-Charts” to find the GCF. and 30 and 36 27 30 24 36 1 × 27 1 × 30 1 × 24 1 × 36 3 × 9 2 × 15 2 × 12 2 × 18 3 × 10 3 × 8 3 × 12 4 × 6 4 × 9 6 × 6 GCF: 3 GCF: 6

13
**Use “T-Charts” to find the GCF.**

Your Turn! Use “T-Charts” to find the GCF. , 15, and 21 12 15 21 1 × 12 1 × 15 1 × 21 2 × 6 3 × 5 3 × 7 3 × 4 GCF: 3

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google