6.N.2.6 LCM & GCF Test Review

Use Greatest Common Factor to reduce the following fraction.

36/60

• 12/12

• 3/5

• 6/12

• 5/3

What is the greatest common factor of 24 and 36?

• 12

• 6

• 72

• 24

What is the GCF and LCM of 6 and 22?

• GCF - 6

  LCM - 22

• GCF - 2

  LCM - 22

• GCF - 66

  LCM - 2

• GCF - 2

  LCM - 66

Use LCM to find a common denominator.

1/5 + 1/6

• 30

• 3

• 11

• 56

What is the LCM of 24 and 6?

• 24

• 48

• 30

• 18

Use GCF to simplify the following fraction.

75/110

• 5/5

• 22/15

• 15/22

• 7/11

What is the GCF of 24 and 30

• 120

• 30

• 6

• 2

What is the GCF and LCM of 6 and 15?

• GCF - 3

  LCM - 30

• GCF - 30

  LCM - 3

• GCF - 6

  LCM - 15

• GCF - 15

  LCM - 6

Use LCM to find a common denominator.

6/24 + 15/30

• 54

• 21

• 30

• 120

What is the LCM of 6 and 14?

• 20

• 42

• 6

• 3