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).

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.

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.

Front

What is 2 x 1/5?

Back

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

Front

What is 2 x 2/5?

Back

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

Front

What is 2 x 4/5?

Back

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

Front

How do you visualize multiplying fractions?

Back

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

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.

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.

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.