Adding Unlike Fractions

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.2B

CCSS.3.NF.A.1

Front

What does it mean to add unlike fractions?

Back

Adding unlike fractions means combining fractions that have different denominators.

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, allowing them to be added or compared.

Front

How do you find a common denominator for 1/2 and 1/3?

Back

The least common multiple of 2 and 3 is 6, so the common denominator is 6.

Front

Convert 1/2 and 1/3 to have a common denominator of 6.

Back

1/2 = 3/6 and 1/3 = 2/6.

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3B

Front

What is the first step in adding unlike fractions?

Back

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

Tags

CCSS.7.NS.A.1C

Front

If you have 1/4 and 1/6, what is a common denominator?

Back

A common denominator for 1/4 and 1/6 is 12.

Front

Convert 1/4 and 1/6 to have a common denominator of 12.

Back

1/4 = 3/12 and 1/6 = 2/12.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What do you do after finding a common denominator?

Back

After finding a common denominator, convert the fractions and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

If you add 3/12 and 2/12, what do you get?

Back

3/12 + 2/12 = 5/12.

Tags

CCSS.4.NF.B.3D

CCSS.4.NF.B.3C