LCM, LCD

Can the LCM of two numbers be smaller than either of the numbers?

• Yes, it can be smaller than one of the numbers.

• Yes, it can be equal to one of the numbers.

• No, the LCM of two numbers is always greater than or equal to the larger of the two numbers.

• No, the LCM is always smaller than both numbers.

What is the LCM of 2, 4, and 6?

• 8

• 10

• 12

• 14

What is the Least Common Denominator (LCD)?

• The greatest common factor of the denominators of two or more fractions.

• The least common multiple of the denominators of two or more fractions.

• The sum of the denominators of two or more fractions.

• The product of the denominators of two or more fractions.

What is the LCM of 2 and 3?

• 4

• 5

• 6

• 7

What is the LCM of 8 and 12?

• 12

• 16

• 20

• 24

How can you determine if a number is a multiple of another number?

• A number is a multiple of another if it can be expressed as the product of that number and an integer.

• A number is a multiple of another if it is greater than that number.

• A number is a multiple of another if it is an even number.

• A number is a multiple of another if it ends with a zero.

How can you use listing multiples to find the LCM of two numbers?

• List the multiples of each number until you find the smallest common multiple.

• Multiply the two numbers together and divide by their GCD.

• Add the two numbers together and find the nearest multiple.

• Subtract the smaller number from the larger number until you reach zero.

How do you find the LCM of two numbers using prime factorization?

• Factor each number into its prime factors and take the lowest power of each prime.

• Factor each number into its prime factors and take the highest power of each prime that appears.

• Add the prime factors of both numbers together to find the LCM.

• Multiply the two numbers together and divide by their GCD.

What is the relationship between LCM and GCD (Greatest Common Divisor)?

• LCM(a, b) = (a * b) / GCD(a, b)

• LCM(a, b) = GCD(a, b) / (a * b)

• LCM(a, b) = a + b

• LCM(a, b) = a - b

What is the LCM of 9 and 10?

• 70

• 80

• 90

• 100