Practice questions

Find the LCM of 12 and 6. 

• 6
• 12
• 2
• 1

What is the GCF of 18 and 24?

• 3
• 6
• 8
• 9

What is the GCF OF 24 and 48?

• 52
• 58
• 24
• 48

What is the GCF of 20, 44, and 88?

• 4
• 2
• 22
• 1

What is the greatest common factor (GCF) of 48x²and 32x³?

• 8x²
• 16x²
• 16x
• 96x³

What is the least common multiple (LCM) of 48x²and 32x³?

• 8x²
• 16x²
• 16x
• 96x³

What is the greatest common factor of 28y²and 49y²?

• 7y
• 21y²
• 196y²
• 7y²

What is the greatest common factor of 42xy² and 28x³y?

• 84x³y²
• 14y
• 14xy
• 14xy²

What is the least common multiple (LCM) of 42xy² and 28x³y?

• 84x³y²
• 14y
• 14xy
• 14xy²

simplify    15/20

• 5/10
• 3/4
• 2/3
• 1/5