Adding and Subtracting Fractions with LIKE denominators

Front

What is the rule for adding fractions with LIKE denominators?

Back

When adding fractions with like denominators, you keep the denominator the same and add the numerators.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the rule for subtracting fractions with LIKE denominators?

Back

When subtracting fractions with like denominators, you keep the denominator the same and subtract the numerators.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

True or false: You can add fractions with UNLIKE denominators without any changes.

Back

False. You must find a common denominator before adding.

Tags

CCSS.7.NS.A.1C

Front

What is a LIKE denominator?

Back

Like denominators are denominators that are the same in two or more fractions.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is an UNLIKE denominator?

Back

Unlike denominators are denominators that are different in two or more fractions.

Tags

CCSS.4.NF.A.2

Front

How do you find a common denominator for two fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators.

Front

What does it mean to simplify a fraction?

Back

Simplifying a fraction means reducing it to its lowest terms, where the numerator and denominator have no common factors other than 1.

Front

Give an example of two fractions with LIKE denominators.

Back

Examples include 1/4 and 3/4, both have a denominator of 4.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

Give an example of two fractions with UNLIKE denominators.

Back

Examples include 1/3 and 1/4, with denominators of 3 and 4.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is the first step in adding fractions with UNLIKE denominators?

Back

The first step is to find a common denominator.

Tags

CCSS.7.NS.A.1C