Multiplying and Dividing Fractions

The video tutorial explains how to divide rational expressions by drawing parallels to dividing fractions. It begins with an introduction to the concept, followed by a review of dividing fractions by multiplying by the inverse. The tutorial then explains how to multiply fractions horizontally and provides an example of dividing rational expressions using this method. The lesson concludes with a summary of the key points covered.

What is the first step in dividing rational expressions?

• Add the numerators

• Multiply by the inverse

• Divide the numerators

• Subtract the denominators

When dividing fractions, what operation do we perform instead?

• Addition

• Subtraction

• Multiplication

• Division

How do you multiply fractions?

• Add the numerators and denominators

• Multiply the numerators and denominators horizontally

• Cross-multiply the terms

• Subtract the numerators from the denominators

What is the result of multiplying 3/4 by 2/1?

• 4/3

• 3/2

• 6/4

• 1/2

How can whole numbers be expressed as fractions?

• By adding 1 to the number

• By dividing the number by 2

• By writing the number over 1

• By multiplying the number by 10

What is 5 expressed as a fraction?

• 5/5

• 5/0

• 1/5

• 5/1

In the example problem, what is the first step after rewriting the expression?

• Subtract the denominators

• Multiply the numerators

• Divide the denominators

• Add the numerators

What is the result of multiplying the numerators in the example problem?

• 24x^2 + 18x

• 35x^2 - 2

• 7x^2 - 4

• 35x^2 - 20

What is the result of multiplying the denominators in the example problem?

• 24x^2 + 18x

• 24x + 18

• 6x^2 + 4x

• 6x + 4x + 3

What is the final result of the example problem?

• 35x^2 - 20 over 24x^2 + 18x

• 7x^2 - 4 over 6x

• 35x^2 - 2 over 24x^2 + 18x

• 4x + 3 over 5