Word problems: adding/subtracting fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole. It has 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 add fractions?

Back

Adding fractions means combining parts of a whole. You need a common denominator to add them.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

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 ⅘ and ½?

Back

The common denominator for ⅘ and ½ is 10.

Front

What is the first step in adding fractions?

Back

The first step is to find a common denominator.

Tags

CCSS.7.NS.A.1C

Front

Back

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions?

Back

To subtract fractions, you also need a common denominator, then subtract the numerators.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

Back

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What does it mean to double a recipe?

Back

Doubling a recipe means to multiply all the ingredients by 2.

Tags

CCSS.RI.11-12.5

CCSS.RI.3.5

CCSS.RI.4.3

CCSS.RI.8.3

CCSS.RI.9-10.3

Front

Back

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C