Flashcard Finding Common Denominators

Front

To find a common denominator you...

Back

skip count or list the multiples of each denominator until you find one they have in common.

Front

What is the common denominator for adding 1/2 + 3/4?

Back

4

Front

What is the least common denominator of 1/4 and 2/5?

Back

20

Front

Which of these numbers could NOT be a common denominator for 1/6 and 1/4? 12, 18, 24, 36

Back

18

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is a common denominator?

Back

A common denominator is a number that can be used as a denominator for two or more fractions.

Front

How do you find the least common denominator (LCD)?

Back

List the multiples of each denominator and find the smallest multiple they share.

Front

What is the least common multiple (LCM)?

Back

The least common multiple is the smallest number that is a multiple of two or more numbers.

Front

If the denominators are 3 and 4, what is the common denominator?

Back

12

Front

Can 10 be a common denominator for 1/5 and 1/2?

Back

Yes, 10 can be a common denominator.

Front

What is the common denominator for 1/3 and 1/6?

Back

6