adding fractions with common denominator

Front

What is the first step in adding fractions with a common denominator?

Back

Ensure that both fractions have the same denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions.

Front

How do you find a common denominator for two fractions?

Back

You can find a common denominator by identifying the least common multiple (LCM) of the two denominators.

Front

What do you do with the numerators when adding fractions with a common denominator?

Back

Add the numerators together while keeping the common denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the formula for adding two fractions with a common denominator?

Back

If a/b and c/b are two fractions, their sum is (a+c)/b.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the denominator in a fraction?

Back

The denominator is the bottom number in a fraction that indicates how many equal parts the whole is divided into.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is the numerator in a fraction?

Back

The numerator is the top number in a fraction that indicates how many parts are being considered.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

Can you add fractions with different denominators directly?

Back

No, you must first convert them to have a common denominator.

Tags

CCSS.7.NS.A.1C

Front

What happens to the value of a fraction if you multiply both the numerator and denominator by the same number?

Back

The value of the fraction remains the same.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is an example of adding two fractions with a common denominator?

Back

For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D