Understanding Lowest Common Denominator

What are the denominators in the given fractions?

• 5 and 10

• 3 and 6

• 4 and 8

• 2 and 4

What does a common denominator mean?

• A number that is a multiple of both denominators

• A number that is a factor of both denominators

• A number that is the sum of both denominators

• A number that is the difference of both denominators

How do you find the lowest common multiple of two numbers?

• By dividing the larger number by the smaller

• By finding the smallest number that is a multiple of both

• By subtracting the smaller number from the larger

• By adding the two numbers

What is the lowest common multiple of 4 and 8?

• 12

• 16

• 8

• 4

Why is 8 considered the lowest common denominator for the fractions?

• Because it is the difference of the denominators

• Because it is the sum of the denominators

• Because it is the largest number that both denominators can divide into

• Because it is the smallest number that both denominators can divide into