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 taking that fraction and adding it to itself as many times as the whole number indicates.

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 the result of 2 x 1/3?

Back

The result is 2/3.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

Front

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

Back

The total weight is 4 x 3/4 = 12/4 or 3 lbs.

Front

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

Back

You need 18 x 1/2 = 18/2 or 9 pizzas.

Front

What is the equivalent of 2 x 4/5?

Back

The equivalent is 8/5.

Front

What does the numerator represent in a fraction?

Back

The numerator represents the number of parts being considered.

Front

What does the denominator represent in a fraction?

Back

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