Adding and subtracting fractions

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

How do you add fractions with different denominators?

Back

To add fractions with different denominators, first find a common denominator, convert the fractions to equivalent fractions with that denominator, and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the least common denominator (LCD)?

Back

The least common denominator (LCD) is the smallest multiple that two or more denominators share, used to simplify the addition or subtraction of fractions.

Front

What is the first step in adding fractions?

Back

The first step in adding fractions is to find a common denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions?

Back

To subtract fractions, find a common denominator, convert the fractions to equivalent fractions, and then subtract the numerators.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the sum of 2/3 and 1/6?

Back

The sum of 2/3 and 1/6 is 5/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the result of 3/7 + 2/21?

Back

The result of 3/7 + 2/21 is 11/21.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 4/5 and 1/2?

Back

The sum of 4/5 and 1/2 is 17/10 or 1 7/10.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you convert 4/5 to a fraction with a denominator of 10?

Back

To convert 4/5 to a fraction with a denominator of 10, multiply both the numerator and denominator by 2 to get 8/10.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is the difference between 3/7 and 1/8?

Back

The difference between 3/7 and 1/8 is 17/56.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2