Adding Fractions (Unlike Denominators)

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to have unlike denominators?

Back

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CCSS.5.NF.B.6

Front

How do you add fractions with unlike denominators?

Back

To add fractions with unlike denominators, you first find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a common denominator?

Back

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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Back

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CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What do you need to have when adding unlike fractions?

Back

You need a common denominator.

Tags

CCSS.7.NS.A.1C

Front

Can you add fractions with unlike denominators directly?

Back

No, you cannot add unlike denominators directly; you must first find a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Back

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Back

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Back

The first step is to find a common denominator, which is 12 in this case.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2