Add and Subtract Fractions with Like 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 like denominators in fractions?

Back

Like denominators mean that the fractions have the same bottom number, which allows for easy addition or subtraction.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you add fractions with like denominators?

Back

To add fractions with like denominators, keep the denominator the same and add the numerators.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions with like denominators?

Back

To subtract fractions with like denominators, keep the denominator the same and subtract the numerators.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the result of 7/9 - 4/9?

Back

3/9

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the result of 2/6 + 1/6?

Back

3/6, which simplifies to 1/2.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the result of 5/8 + 2/8?

Back

7/8

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the result of 9/12 - 5/12?

Back

4/12.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the result of 3/7 + 2/7?

Back

5/7.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide both the numerator and the denominator by their greatest common factor.