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Which of the following are irrational numbers?

2/3, √36, √3 + √6, π, 0.75, 48%, 8 1/3

 

P.S;

I don't understand what irrational and rational numbers are. I just started learning them in school.

Gosh my governments education speed is slow!

 Jan 31, 2016

Best Answer 

 #10
avatar+118587 
+15

It is pretty simple really Eloise.   laugh

 

If you can write a number as a fraction then it is RATIONAL.  It is that simple!

 

Lets see if I can rattle off the definition of a rational number:

"A number is rational if it can be written as p/q where p and q are both integers and p and q have no common factors other than 1"

 

It helps to know that all terminating and recurring decimals can be written as fractions. :)

 

But decimals that do not recur or terminate such as pi or sqrt2 cannot be written exactly as a fraction.     wink

 Jan 31, 2016
 #2
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+10

Which of the following are irrational numbers?

2/3, √36, √3 + √6, π, 0.75, 48%, 8 1/3

 

Sqrt(3)+Sqrt(6), Pi =are irrational.

All others are rational.

 Jan 31, 2016
 #3
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Could u maybe explain in your own words? My dad doens't let me use utube. Says it uses up too much of his "bandwidth". Ugh. So yea. Plz explain.

 Jan 31, 2016
 #4
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What soviet gave u isn't you tube, I think that is what u meant?

 Jan 31, 2016
 #5
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Oh n thank u guest.

 Jan 31, 2016
 #6
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+5

https://en.wikipedia.org/wiki/Irrational_number

 

OK.... this is just a website.....no 'bandwidth' involved.....

 

 

 

~jc

 Jan 31, 2016
 #7
avatar+600 
+5

No its just that on the site he gave me, u have 2 watch a utube video. That's what I meant. But thank solviet.

 Jan 31, 2016
 #8
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It didn't show me a video when I clicked on it...:/

 Jan 31, 2016
 #9
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+10

Rational and irrational numbers in Math doesn't mean that some numbers are "sensible or reasonable" and some are "crazy or unreasonable"!!.

Rational, simply means that you can express that number as a "RATIO" of two other numbers. In your numbers: .75 is rational. Why? Because you can express it as RATIO of two other numbers.Example: .75 can be written as 3/4, or 75/100, or 12/16........etc.

An irrational number CANNOT be expressed as a RATIO of two other numbers. Example: Pi. You can NEVER find two numbers such as a/b that will give you Pi.

 Jan 31, 2016
 #10
avatar+118587 
+15
Best Answer

It is pretty simple really Eloise.   laugh

 

If you can write a number as a fraction then it is RATIONAL.  It is that simple!

 

Lets see if I can rattle off the definition of a rational number:

"A number is rational if it can be written as p/q where p and q are both integers and p and q have no common factors other than 1"

 

It helps to know that all terminating and recurring decimals can be written as fractions. :)

 

But decimals that do not recur or terminate such as pi or sqrt2 cannot be written exactly as a fraction.     wink

Melody Jan 31, 2016
 #11
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0

Heii wink

 Jan 31, 2016

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