Multiplying Fractions by Whole Numbers

Front

What is a fraction?

Back

A fraction represents a part of a whole, consisting 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 multiply a fraction by a whole number?

Back

Multiplying a fraction by a whole number means you are taking that fraction and adding it to itself a certain number of times.

Tags

CCSS.5.NF.B.4A

Front

What is the formula for multiplying a fraction by a whole number?

Back

The formula is: Whole Number x (Numerator/Denominator) = (Whole Number x Numerator) / Denominator.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is 2 x 1/5?

Back

2 x 1/5 = 2/5 + 2/5 = 4/5.

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

Front

What is 2 x 2/5?

Back

2 x 2/5 = 2/5 + 2/5 = 4/5 + 4/5 = 8/5.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is 2 x 4/5?

Back

2 x 4/5 = 4/5 + 4/5 = 8/5.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

How do you visualize multiplying fractions?

Back

You can use models like number lines or area models to show how fractions are multiplied.

Tags

CCSS.5.NF.B.5B

Front

If a water bottle holds 3/4 cup of water, how much water is in 15 bottles?

Back

15 x 3/4 = 45/4 cups of water.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is the total weight of 4 jars of candy, each weighing 3/4 lb?

Back

4 x 3/4 = 12/4 lbs of candy.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is the relationship between the numerator and denominator in a fraction?

Back

The numerator indicates how many parts you have, while the denominator indicates how many equal parts the whole is divided into.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B