FPB and KPK

What is the greatest common factor (GCF) of 12 and 16?

• 2

• 4

• 6

• 8

If two numbers have a GCF of 4 and one of the numbers is 20, what is the other number?

• 4

• 16

• 12

• 8

A baker has 18 cupcakes and 24 cookies. What is the maximum number of boxes he can use to pack them evenly?

• 12

• 9

• 4

• 6

Find the least common multiple (LCM) of 3 and 5.

• 20

• 12

• 15

• 10

If two friends are cycling at speeds of 12 km/h and 15 km/h, how long will it take for them to meet at the same point if they start together?

• 1 hour

• 30 minutes

• 0 hours

• 2 hours

What is the GCF of 30, 45, and 75?

• 25

• 20

• 15

• 10

A gardener has 36 red flowers and 48 yellow flowers. What is the largest number of equal groups he can make?

• 18

• 24

• 12

• 6

If the LCM of two numbers is 60 and one of the numbers is 15, what is the other number?

• 4

• 20

• 10

• 12

A teacher has 20 pencils and 30 erasers. What is the greatest number of students she can give an equal number of each item?

• 10

• 15

• 5

• 25

What is the LCM of 8 and 12?

• 30

• 20

• 24

• 16