Multiplying Fractions by Whole Numbers

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

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, based on the whole number.

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 product of 2 x 1/3?

Back

The product is 2/3.

Front

What is the product of 3 x 2/5?

Back

The product is 6/5 or 1 1/5.

Front

If you have 4 jars of candy, each containing 3/4 lb, how do you find the total weight?

Back

Multiply the number of jars (4) by the weight of each jar (3/4 lb): 4 x 3/4 = 12/4 or 3 lbs.

Front

What is the total weight of 5 jars of candy, each containing 2/3 lb?

Back

The total weight is 5 x 2/3 = 10/3 or 3 1/3 lbs.

Front

How do you represent 2 x 2/6 visually?

Back

You can use a number line or area model to show 2 groups of 2/6.

Front

What is the total amount of water in cups if 15 bottles each hold 3/4 cup?

Back

15 x 3/4 = 45/4 cups.

Front

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

Back

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