Adding and Subtracting Fractions with unlike denominators( TM)

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).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to have unlike denominators?

Back

Tags

CCSS.4.NF.A.2

Front

How do you add fractions with unlike denominators?

Back

To add fractions with unlike denominators, first find a common denominator, convert the fractions, and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you subtract fractions with unlike denominators?

Back

To subtract fractions with unlike denominators, find a common denominator, convert the fractions, and then subtract the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the first step in adding or subtracting fractions?

Back

The first step is to find a common denominator for the fractions.

Tags

CCSS.7.NS.A.1C

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.

Front

Back

Tags

CCSS.7.NS.A.1C

Front

What do you do with the numerators when adding fractions?

Back

You add the numerators together after converting to a common denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What do you do with the denominators when adding fractions?

Back

You keep the common denominator the same after finding it.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

Can you add fractions with unlike denominators directly?

Back

No, you cannot add fractions with unlike denominators directly without finding a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2