Add/Subtract Fractions w/Unlike 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 unlike denominators?

Back

Unlike denominators are when the bottom numbers of two or more fractions are different.

Tags

CCSS.4.NF.B.3A

Front

How do you add fractions with unlike denominators?

Back

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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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.

Front

How do you find the least common denominator (LCD)?

Back

The least common denominator is the smallest multiple that two or more denominators share.

Front

What is the sum of 1/2 + 1/3?

Back

The sum is 5/6 after finding a common denominator of 6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 2/6 + 2/8?

Back

The sum is 7/12 after finding a common denominator of 24.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

If you mix 5/9 gallons of paint and 1/6 gallons of paint, how much paint do you have in total?

Back

You have 13/18 gallons of paint after adding the fractions.

Tags

CCSS.7.NS.A.1C

Front

What is the first step in adding fractions?

Back

The first step is to find a common denominator for the fractions.

Tags

CCSS.7.NS.A.1C

Front

What is the process to convert fractions to have a common denominator?

Back

Multiply the numerator and denominator of each fraction by the necessary factors to reach the common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2