Dividing Rational Algebraic Expressions Lesson

10 Slides • 8 Questions

1

Dividing Rational Algebraic Expressions

Sir Ace

2

Multiple Choice

What is the reciprocal of $\frac{2}{5}$ ?

1

$\frac{2}{5}$

2

$\frac{5}{2}$

3

2

4

5

3

Multiple Choice

What is the reciprocal of $\frac{1}{3x}$ ?

1

3x

2

$\frac{1}{3x}$

3

1

4

$\frac{1}{3}$

4

Fill in the Blanks

Type answer...

5

What are the words similar to reciprocal?

reverse
flip
switch

6

How do we divide fractions?

COPY the 1st fraction
CHANGE division to multiplication
FLIP the second fraction
MULTILPLY

7

Multiple Choice

$\frac{3}{4}\div\frac{2}{5}$

1

$\frac{6}{20}$

2

$\frac{8}{15}$

3

$\frac{20}{6}$

4

$\frac{15}{8}$

8

Multiple Choice

$\frac{3}{16}\div\frac{3}{4}$

1

$\frac{1}{4}$

2

4

3

$\frac{9}{64}$

4

$\frac{12}{48}$

9

USE CROSS - CANCELLATION in multiplying fractions

10

Dividing Rational Algebraic expressions are just the same with dividing fractions.

COPY the 1st fraction

CHANGE division to multiplication

FLIP the 2nd fraction

FACTOR the numerator and denominator

CANCEL common factors

MULTIPLY the remaining factors

11

EXAMPLE NO. 1

Step 1: Copy, Change and Flip

Step 2: Factor the numerator and denominator

Step 3: Cancel Common factors

Step 4: Multiply the remaining factors

12

EXAMPLE NO. 2

Step 1: Copy, Change and Flip

Step 2: Factor the numerator and denominator

Step 3: Cancel Common factors

Step 4: Multiply the remaining factors

13

Multiple Choice

$\frac{1}{x}\div\frac{2}{x}$

1

$\frac{2}{x^2}$

2

$\frac{1}{2}$

3

$\frac{x}{2}$

4

$\frac{x}{2x}$

14

SOLUTION

15

Multiple Choice

$\frac{12x^2}{4yz}\div\frac{3x^2}{9yz}$

1

$3$

2

$9$

3

$\frac{9}{yz}$

4

$\frac{3}{yz}$

16

SOLUTION

17

Multiple Choice

$\frac{x^2+x-2}{x-1}\div\frac{x^2+5x+6}{x^2}$

1

$x^2$

2

$x+3$

3

$\frac{x^2}{x+3}$

4

$\frac{x^2}{x+2}$

18

SOLUTION

Dividing Rational Algebraic Expressions

Sir Ace

Show answer

Auto Play

Slide 1 / 18

SLIDE

Similar Resources on Wayground

13 questions

Complete the Square

Presentation

•

8th Grade

14 questions

Combining Like Terms

Presentation

•

8th Grade

14 questions

Angles and Transversals Review

Presentation

•

8th Grade

12 questions

Solving Equations

Presentation

•

8th Grade

14 questions

8th Grade Math Review Part 1

Presentation

•

8th Grade

14 questions

Indirect Measurement

Presentation

•

8th Grade

13 questions

Graph Story

Presentation

•

8th Grade

13 questions

Rational and Irrational Numbers

Presentation

•

8th Grade

Popular Resources on Wayground

24 questions

PBIS-HGMS Day 10

Quiz

•

6th - 8th Grade

10 questions

HCS SCI 03 Summer School Review 3

Quiz

•

3rd Grade

11 questions

Home Scope

Quiz

•

7th - 8th Grade

15 questions

HCS SCI 05 Summer School Assessment 3 Review

Quiz

•

5th Grade

35 questions

Lufkin Road Middle School Student Handbook & Policies Assessment

Quiz

•

7th Grade

18 questions

Geo 11.3 Area of Circles and Sectors

Quiz

•

9th - 11th Grade

Discover more resources for Mathematics

24 questions

PBIS-HGMS Day 10

Quiz

•

6th - 8th Grade

11 questions

Home Scope

Quiz

•

7th - 8th Grade