Understanding the Invert and Multiply Procedure: Dividing by a Fraction

The video tutorial explains that dividing by a number is equivalent to multiplying by its reciprocal. It begins with an introduction to the concept of reciprocals and why this method works. The tutorial then provides examples using whole numbers and fractions to demonstrate the principle. By the end, viewers understand that dividing by a fraction yields the same result as multiplying by its reciprocal, reinforcing the concept through equivalence.

What is a reciprocal?

• A number that is divided by another number to get zero

• A number that is subtracted from another number to get one

• A number that is multiplied by another number to get one

• A number that is added to another number to get zero

Why is it important to understand the invert and multiply procedure?

• Because it helps in adding fractions

• Because it ensures correct division of fractions

• Because it is necessary for multiplying whole numbers

• Because it is used in subtracting fractions

What is the reciprocal of 3?

• 1

• 9

• 3

• 1/3

What happens when you multiply 1/3 by 3?

• You get 3

• You get 1

• You get 9

• You get 1/9

What is the result of dividing 3/4 by 3/4?

• 4/3

• 1

• 0

• 3/4