Adding & Subtracting Fractions with 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).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does the denominator in a fraction represent?

Back

The denominator indicates how many equal parts the whole is divided into.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does the numerator in a fraction represent?

Back

The numerator shows how many parts of the whole are being considered.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is an unlike denominator?

Back

Unlike denominators are denominators that are different from each other in fractions.

Tags

CCSS.4.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

How do you find a common denominator for 1/4 and 5/8?

Back

The least common multiple of 4 and 8 is 8, so the common denominator is 8.

Front

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

Back

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

Tags

CCSS.7.NS.A.1C

Front

Add 1/4 + 5/8.

Back

7/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Add 1/6 + 1/2.

Back

4/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the result of 2/3 + 5/12?

Back

1 1/12

Tags

CCSS.7.NS.A.1C