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Find the quotient: −72 a 4 b 5 −8 a 9 b 5 .

9 a 5

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Find the quotient: 24 a 5 b 3 48 a b 4 .

Solution

24 a 5 b 3 48 a b 4
Use fraction multiplication. 24 48 a 5 a b 3 b 4
Simplify and use the Quotient Property. 1 2 a 4 1 b
Multiply. a 4 2 b
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Find the quotient: 16 a 7 b 6 24 a b 8 .

2 a 6 3 b 2

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Find the quotient: 27 p 4 q 7 −45 p 12 q .

3 q 6 5 p 8

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Once you become familiar with the process and have practiced it step by step several times, you may be able to simplify a fraction in one step.

Find the quotient: 14 x 7 y 12 21 x 11 y 6 .

Solution

14 x 7 y 12 21 x 11 y 6
Simplify and use the Quotient Property. 2 y 6 3 x 4

Be very careful to simplify 14 21 by dividing out a common factor, and to simplify the variables by subtracting their exponents.

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Find the quotient: 28 x 5 y 14 49 x 9 y 12 .

4 y 2 7 x 4

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Find the quotient: 30 m 5 n 11 48 m 10 n 14 .

5 8 m 5 n 3

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In all examples so far, there was no work to do in the numerator or denominator before simplifying the fraction. In the next example, we'll first find the product of two monomials in the numerator before we simplify the fraction.

Find the quotient: ( 3 x 3 y 2 ) ( 10 x 2 y 3 ) 6 x 4 y 5 .

Solution

Remember, the fraction bar is a grouping symbol. We will simplify the numerator first.

( 3 x 3 y 2 ) ( 10 x 2 y 3 ) 6 x 4 y 5
Simplify the numerator. 30 x 5 y 5 6 x 4 y 5
Simplify, using the Quotient Rule. 5 x
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Find the quotient: ( 3 x 4 y 5 ) ( 8 x 2 y 5 ) 12 x 5 y 8 .

2 xy 2

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Find the quotient: ( −6 a 6 b 9 ) ( −8 a 5 b 8 ) −12 a 10 b 12 .

−4 ab 5

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Key concepts

  • Equivalent Fractions Property
    • If a , b , c are whole numbers where b 0 , c 0 , then
      a b = a · c b · c and a · c b · c = a b
  • Zero Exponent
    • If a is a non-zero number, then a 0 = 1 .
    • Any nonzero number raised to the zero power is 1 .
  • Quotient Property for Exponents
    • If a is a real number, a 0 , and m , n are whole numbers, then
      a m a n = a m n , m > n and a m a n = 1 a n m , n > m
  • Quotient to a Power Property for Exponents
    • If a and b are real numbers, b 0 , and m is a counting number, then
      ( a b ) m = a m b m
    • To raise a fraction to a power, raise the numerator and denominator to that power.

Practice makes perfect

Simplify Expressions Using the Quotient Property of Exponents

In the following exercises, simplify.

Simplify Expressions with Zero Exponents

In the following exercises, simplify.

  1. ( 10 p ) 0
  2. 10 p 0

  1. 1
  2. 10

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  1. ( −27 x 5 y ) 0
  2. −27 x 5 y 0

  1. 1
  2. −27 x 5

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  1. ( −92 y 8 z ) 0
  2. −92 y 8 z 0

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  1. 15 0
  2. 15 1

  1. 1
  2. 15

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Simplify Expressions Using the Quotient to a Power Property

In the following exercises, simplify.

Simplify Expressions by Applying Several Properties

In the following exercises, simplify.

( a 4 · a 6 a 3 ) 2

a 14

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( x 3 ) 6 ( x 4 ) 7

1 x 10

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( 2 r 3 5 s ) 4

16 r 12 625 s 4

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( 3 y 2 · y 5 y 15 · y 8 ) 0

1

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( 15 z 4 · z 9 0.3 z 2 ) 0

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( r 2 ) 5 ( r 4 ) 2 ( r 3 ) 7

1 r 3

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( p 4 ) 2 ( p 3 ) 5 ( p 2 ) 9

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( 3 x 4 ) 3 ( 2 x 3 ) 2 ( 6 x 5 ) 2

3 x 8

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( −2 y 3 ) 4 ( 3 y 4 ) 2 ( −6 y 3 ) 2

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Divide Monomials

In the following exercises, divide the monomials.

36 x 3 ÷ ( −2 x 9 )

−18 x 6

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−35 x 7 −42 x 13

5 6 x 6

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18 r 5 s 3 r 3 s 9

6 r 2 s 8

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−12 x 4 y 9 15 x 6 y 3

4 y 6 5 x 2

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48 x 11 y 9 z 3 36 x 6 y 8 z 5

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64 x 5 y 9 z 7 48 x 7 y 12 z 6

4 z 3 x 2 y 3

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( 10 u 2 v ) ( 4 u 3 v 6 ) 5 u 9 v 2

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( 6 m 2 n ) ( 5 m 4 n 3 ) 3 m 10 n 2

10 n 2 m 4

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( 6 a 4 b 3 ) ( 4 a b 5 ) ( 12 a 8 b ) ( a 3 b )

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( 4 u 5 v 4 ) ( 15 u 8 v ) ( 12 u 3 v ) ( u 6 v )

5 u 4 v 3

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Mixed practice

  1. 24 a 5 + 2 a 5
  2. 24 a 5 2 a 5
  3. 24 a 5 2 a 5
  4. 24 a 5 ÷ 2 a 5

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  1. 15 n 10 + 3 n 10
  2. 15 n 10 3 n 10
  3. 15 n 10 3 n 10
  4. 15 n 10 ÷ 3 n 10

  1. 18 n 10
  2. 12 n 10
  3. 45 n 20
  4. 5

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  1. p 4 p 6
  2. ( p 4 ) 6

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  1. q 5 q 3
  2. ( q 5 ) 3

  1. q 8
  2. q 15

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  1. z 6 z 5
  2. z 5 z 6

  1. z
  2. 1 z

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( 8 x 5 ) ( 9 x ) ÷ 6 x 3

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( 4 y 5 ) ( 12 y 7 ) ÷ 8 y 2

6 y 6

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27 a 7 3 a 3 + 54 a 9 9 a 5

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32 c 11 4 c 5 + 42 c 9 6 c 3

15 c 6

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32 y 5 8 y 2 60 y 10 5 y 7

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48 x 6 6 x 4 35 x 9 7 x 7

3 x 2

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63 r 6 s 3 9 r 4 s 2 72 r 2 s 2 6 s

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56 y 4 z 5 7 y 3 z 3 45 y 2 z 2 5 y

y z 2

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Everyday math

Memory One megabyte is approximately 10 6 bytes. One gigabyte is approximately 10 9 bytes. How many megabytes are in one gigabyte?

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Memory One megabyte is approximately 10 6 bytes. One terabyte is approximately 10 12 bytes. How many megabytes are in one terabyte?

1,000,000

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Writing exercises

Vic thinks the quotient x 20 x 4 simplifies to x 5 . What is wrong with his reasoning?

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Mai simplifies the quotient y 3 y by writing y 3 y = 3 . What is wrong with her reasoning?

Answers will vary.

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When Dimple simplified 3 0 and ( −3 ) 0 she got the same answer. Explain how using the Order of Operations correctly gives different answers.

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Roxie thinks n 0 simplifies to 0 . What would you say to convince Roxie she is wrong?

Answers will vary.

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Self check

After completing the exercises, use this checklist to evaluate your mastery of the objectives of this section.

.

On a scale of 1–10, how would you rate your mastery of this section in light of your responses on the checklist? How can you improve this?

Questions & Answers

what is microbiology
Agebe Reply
What is a cell
Odelana Reply
what is cell
Mohammed
how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
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Source:  OpenStax, Prealgebra. OpenStax CNX. Jul 15, 2016 Download for free at http://legacy.cnx.org/content/col11756/1.9
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