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 it mean to add fractions?

Back

Adding fractions means combining parts of a whole. To add fractions, they must have the same denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What does it mean to subtract fractions?

Back

Subtracting fractions means taking one part away from another. Like addition, the fractions must have the same denominator.

Tags

CCSS.4.NF.B.3A

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 subtracted.

Front

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

Back

The common denominator for 1/2 and 1/3 is 6. You can convert 1/2 to 3/6 and 1/3 to 2/6.

Front

What is the simplest form of a fraction?

Back

The simplest form of a fraction is when the numerator and denominator have no common factors other than 1.

Front

How do you reduce a fraction to its simplest form?

Back

To reduce a fraction, divide both the numerator and denominator by their greatest common factor (GCF).

Front

What is the sum of 1/4 and 3/4?

Back

The sum of 1/4 and 3/4 is 1 (or 4/4).

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the difference between 3/5 and 1/5?

Back

The difference between 3/5 and 1/5 is 2/5.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the sum of 1/8 and 5/8?

Back

The sum of 1/8 and 5/8 is 6/8, which can be simplified to 3/4.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D