GCF and Simplify Fractions

What is the GCF (greatest common factor) of 18 and 24?

• 3

• 6

• 8

• 9

Tags

CCSS.4.OA.B.4

What is the GCF of 20 and 30?

• 5

• 2

• 10

• 20

Tags

CCSS.4.OA.B.4

Identify the correct list for ALL the factors of 12.

• 1, 2, 3, 4, 6, 12

• 1, 2, 3, 5, 6, 12

• 1, 2, 3, 4, 8, 12

• 1, 2, 3, 6, 12

Tags

CCSS.4.OA.B.4

What are the factors of 16 and 24?

• 16-1, 3, 6, 12, 16

  24-1, 2, 4, 6, 24

• 16-1, 2, 4, 8, 16

  24-1, 2, 3, 4, 6, 8, 12, 24

• 16-16, 32, 48, 54

  24-24, 48, 72, 86

• 16-1, 2, 16

  24-1, 2, 12, 24

Tags

CCSS.4.OA.B.4

 $Simplify.\ \ \ \frac{28}{49}$ 

• 3/8

• 4/8

• 4/7

• 5/7

Tags

CCSS.4.NF.A.1

CCSS.4.NF.A.2

 $Simplify.\ \frac{44}{48}$  

• 11/12

• 20/30

• 3/5

• 12/11

Tags

CCSS.4.NF.A.1

 $Simplify.\ \frac{3}{9}$  

• 2/3

• 1/3

• 3/4

• 1/4

Tags

CCSS.4.NF.A.1

 $Simplify.\ \frac{16}{32}$  

• 1/2

• 1/4

• 4/9

• 4/6

Tags

CCSS.5.NF.B.3