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.1

CCSS.3.NF.A.2B

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

How do you find a common denominator for 2/5 and 3/10?

Back

The least common denominator (LCD) of 2/5 and 3/10 is 10.

Front

What is the first step in adding 2/5 + 3/10?

Back

Convert 2/5 to an equivalent fraction with a denominator of 10, which is 4/10.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 4/10 and 3/10?

Back

4/10 + 3/10 = 7/10.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you add 3/4 and 2/3?

Back

Find the LCD, which is 12. Convert to equivalent fractions: 3/4 = 9/12 and 2/3 = 8/12. Then add: 9/12 + 8/12 = 17/12 or 1 5/12.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process to add 2/4 and 2/3?

Back

Find the LCD, which is 12. Convert: 2/4 = 6/12 and 2/3 = 8/12. Then add: 6/12 + 8/12 = 14/12 or 1 1/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 1/3 and 5/9?

Back

Convert 1/3 to 3/9. Then add: 3/9 + 5/9 = 8/9.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you add 2/3 and 1/6?

Back

Find the LCD, which is 6. Convert: 2/3 = 4/6 and 1/6 = 1/6. Then add: 4/6 + 1/6 = 5/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the importance of finding a common denominator?

Back

Finding a common denominator allows you to add fractions accurately.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2