Adding and Subtracting Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole. It 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 numerator in a fraction represent?

Back

The numerator is the top number of a fraction and represents how many parts we have.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does the denominator in a fraction represent?

Back

The denominator is the bottom number of a fraction and represents the total number of equal parts the whole is divided into.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest number that can be used as a common denominator for two or more fractions.

Front

How do you add fractions with different denominators?

Back

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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process to subtract fractions?

Back

To subtract fractions, ensure they have the same denominator, then subtract the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is 1/2 + 1/4?

Back

1/2 + 1/4 = 3/4.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is 3/4 - 1/4?

Back

3/4 - 1/4 = 2/4 = 1/2.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is 5/8 - 1/4?

Back

5/8 - 1/4 = 5/8 - 2/8 = 3/8.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is 2/3 + 1/6?

Back

2/3 + 1/6 = 4/6 + 1/6 = 5/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2