Fraction Multiplication and Simplification

This lesson teaches how to simplify fraction multiplication problems by canceling common factors. It explains the concept of multiplying fractions as taking a fraction of a fraction and demonstrates how to simplify before multiplying using examples. The lesson includes a real-world application involving cooking oil to illustrate the process. By identifying and dividing by common factors, students can find the simplest form of the product.

What does multiplying 1/2 by 2/3 represent?

• Taking 1/2 of 2/3

• Subtracting 1/2 from 2/3

• Adding 1/2 and 2/3

• Dividing 1/2 by 2/3

What is the greatest common factor used to simplify 2/6?

• 1

• 6

• 3

• 2

How can you simplify the multiplication of 1/2 and 2/3 before multiplying?

• By adding the fractions

• By subtracting the fractions

• By canceling common factors

• By finding a common denominator

What is the simplest form of 6/12?

• 1/2

• 1/3

• 2/3

• 3/4

What common factor is used to simplify 9/12 in Emily's cooking oil problem?

• 5

• 2

• 3

• 4

What is the result of multiplying 5/12 by 9/10 before simplification?

• 3/8

• 5/6

• 45/120

• 1/2

What is the simplest form of 45/120?

• 5/12

• 1/3

• 3/8

• 3/4

What is the common factor used to simplify 5/10 in Emily's problem?

• 10

• 5

• 2

• 1

How much cooking oil did Emily use in simplest form?

• 5/12 liter

• 1/2 liter

• 3/8 liter

• 9/10 liter

What is the purpose of canceling common factors in fraction multiplication?

• To add the fractions

• To simplify the multiplication process

• To make the fractions larger

• To find a common denominator