Common Denominator

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions, allowing them to be added or compared.

Front

Why do we need a common denominator when adding fractions?

Back

We need a common denominator to ensure that the fractions are expressed in the same terms, making it possible to add them accurately.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the first step in adding fractions with unlike denominators?

Back

Find a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest multiple that two or more denominators share.

Front

How do you find the least common denominator of 1/4 and 1/3?

Back

The least common denominator of 1/4 and 1/3 is 12.

Front

Can you add fractions with different denominators directly?

Back

No, you cannot add fractions with different denominators directly.

Tags

CCSS.7.NS.A.1C

Front

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

Back

The common denominator for 1/2 and 3/4 is 4.

Front

If you have the fractions 1/3 and 1/6, what is their common denominator?

Back

The common denominator for 1/3 and 1/6 is 6.

Front

What happens if you add 1/4 and 1/3 without finding a common denominator?

Back

You will get an incorrect answer because the fractions are not in the same terms.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is an example of finding a common denominator for 2/5 and 1/10?

Back

The common denominator for 2/5 and 1/10 is 10.