Subtracting Fractions with 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 subtract fractions?

Back

Subtracting fractions means finding the difference between two fractions.

Tags

CCSS.4.NF.B.3A

Front

What are unlike denominators?

Back

Unlike denominators are denominators that are not 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 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 least common denominator (LCD) of 1/2 and 1/3 is 6.

Front

What is the first step in subtracting fractions with unlike denominators?

Back

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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you convert 5/8 to have a denominator of 40?

Back

Multiply the numerator and denominator by 5 to get 25/40.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

How do you convert 2/5 to have a denominator of 40?

Back

Multiply the numerator and denominator by 8 to get 16/40.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

Back

Tags

CCSS.7.NS.A.1C

Front

What is the difference between 1/4 cup of sugar and 2/3 cup of flour?

Back

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2