Add 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 it mean to have unlike denominators?

Back

Unlike denominators are when the bottom numbers of two or more fractions are different, making it necessary to find a common denominator to add or subtract them.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find a common denominator for 1/4 and 3/8?

Back

The least common denominator (LCD) of 1/4 and 3/8 is 8. You can convert 1/4 to 2/8 to add it to 3/8.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 1/4 + 3/8?

Back

5/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you add fractions with unlike denominators?

Back

1. Find the least common denominator (LCD). 2. Convert each fraction to an equivalent fraction with the LCD. 3. Add the numerators and keep the denominator the same.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction, such as 3 1/2.

Tags

CCSS.3.NF.A.3C

Front

Convert the improper fraction 7/2 to a mixed number.

Back

3 1/2

Front

What is the sum of 1/9 + 2/27?

Back

5/27

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you convert 2/3 to have a denominator of 12?

Back

Multiply the numerator and denominator by 4 to get 8/12.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

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

Back

1 1/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2