Simplifying Complex Fractions Explained

The video tutorial explains how to solve a complex fraction problem involving expressions with variables. It begins with setting up the problem and writing the expression as a complex fraction. The instructor then demonstrates the process of simplifying the fractions using the Keep Change Flip method. The tutorial continues with factoring and canceling like terms to simplify the expression further. Finally, the instructor concludes with a summary of the solution and provides instructions for a problem set to reinforce the concepts learned.

What is the initial complex fraction given in the problem?

• 3x - 27 over x cubed

• 5x^2 - 45x over x cubed

• 5x^2 - 45x over 5x

• 3x - 27 over 5x

Tags

CCSS.HSA.APR.D.6

What is the first step in solving the complex fraction?

• Simplify the denominator

• Simplify the numerator

• Write it as a complex fraction

• Factor the terms

Tags

CCSS.HSA.APR.D.7

What method is used to simplify the complex fraction?

• Division and Multiplication

• Addition and Subtraction

• Keep Change Flip

• Cross Multiplication

What is the reciprocal of the fraction 5x^2 - 45x over 5x?

• 5x over 5x^2 - 45x

• x over 5x^2 - 45x

• 5x^2 - 45x over x

• 5x over x^2 - 45x

Tags

CCSS.HSA.APR.D.6

What can be factored out from the numerator 3x - 27?

• x

• 3

• 27

• 9

Tags

CCSS.7.EE.A.1

What is the simplified form of 5x^2 - 45x?

• 5x^2 - 9x

• x(5x - 45)

• 5(x - 9)

• 5x(x - 9)

What terms cancel out in the final simplification?

• x - 9 and 3

• 5x and 5x

• 3 and x

• 5x and x - 9

Tags

CCSS.HSA.APR.D.6

What is the final simplified rate in miles per minute?

• x

• 3 over x

• 3x

• x over 3

Tags

CCSS.6.EE.B.7

What should you constantly be on patrol for during simplification?

• Division errors

• Addition errors

• Multiplication errors

• Factor errors

Tags

CCSS.6.EE.A.1

What is the key concept at the heart of these problems?

• Division and Multiplication

• Keep Change Flip

• Cross Multiplication

• Addition and Subtraction

Tags

CCSS.7.EE.B.3