GCF & LCM

Sara had 16 red flowers and 24 yellow flowers. She wants to make bouquets with the same number of each color flower in each bouquet. What is the greatest number of bouquets that she can make?

• 4

• 2

• 48

• 8

List all the factors of 12

• 1, 2, 3, 4, 6, 12
• 1, 2, 4, 12
• 1, 12
• 1, 2, 3, 4, 5, 6, 12

Tags

CCSS.4.OA.B.4

Two clocks are turned on at the same time. One clock chimes every 15 minutes. The other clock chimes every 25 minutes. In how many minutes will they chime together?

• 55 minutes

• 25 minutes

• 60 minutes

• 75 minutes

Lisa is making activity baskets to donate to charity. She has 12 coloring books and 36 crayons. What is the greatest number of baskets she can make if each type of toy is equally distributed among the baskets?

• 2

• 12

• 36

• 6

What are the factors of 25?

• 1, 2, 3, 5, 10, 15, 25
• 1, 5,  25
• 1, 25
• 1, 5

Tags

CCSS.4.OA.B.4

LCM

(5, 10, 15)

• 50

• 30

• 90

• 150

GCF (32, 16)

• 8
• 16
• 24
• 32

Tags

CCSS.6.NS.B.4

GCF (25, 15)

• 5
• 10
• 15
• 20

Tags

CCSS.6.NS.B.4

GCF (20, 40)

• 20
• 40
• 60
• 80

GCF (40, 20)

• 20
• 80
• 2
• 10