Multiplying Fractions by Whole Numbers

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists 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 as many times as the whole number indicates.

Front

How do you multiply a fraction by a whole number?

Back

To multiply a fraction by a whole number, multiply the numerator of the fraction by the whole number and keep the denominator the same.

Front

What is the result of 1/2 x 4?

Back

1/2 x 4 = 4/2 = 2.

Front

If each student eats 1/2 a pizza and there are 18 students, how many pizzas are needed?

Back

18 students x 1/2 pizza each = 18/2 = 9 pizzas.

Front

What is the total weight of 4 jars of candy if each jar has 3/4 Ib?

Back

4 jars x 3/4 Ib = 12/4 Ib = 3 Ib.

Front

What does the numerator represent in a fraction?

Back

The numerator represents the number of parts you have.

Front

What does the denominator represent in a fraction?

Back

The denominator represents the total number of equal parts in a whole.

Front

How can you visualize multiplying a fraction by a whole number?

Back

You can use models like area models or number lines to show how many parts of the fraction you have.

Front

What is 3/4 of 15?

Back

3/4 x 15 = 45/4.