LCM Ladder Method Quiz

What is the least common multiple of 10 and 15 using the traditional method?

• 20

• 40

• 30

• 50

In the ladder method, what is the first step to find the LCM of two numbers?

• Multiply the numbers directly

• Find a common factor of the numbers

• Subtract the smaller number from the larger

• List all multiples of the numbers

Using the ladder method, what is the LCM of 16 and 40?

• 100

• 40

• 60

• 80

What is the LCM of 20 and 32 using the ladder method?

• 160

• 140

• 120

• 180

When using the ladder method, what is the LCM of 7 and 12?

• 108

• 96

• 84

• 72