Math Is Fun Forum

tryingtolearn

Member

Registered: 2013-05-24

Posts: 2

Simplifying Radical in Denominator

Hello,

I know this may be a simple question, but I am trying to refresh my math skills by practicing a few things, and I cannot figure out for the life of me how these two expressions are equal. Can someone please explain to me how one reduces to the other?

3 / (2*sqrt(3x)) = sqrt(3) / 2*sqrt(x)

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Simplifying Radical in Denominator

Hi;

Multiply top and bottom by √3

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

tryingtolearn

Member

Registered: 2013-05-24

Posts: 2

Re: Simplifying Radical in Denominator

Thanks for the response!

Can I ask why and how you are able to do that?

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Simplifying Radical in Denominator

Hi;

If you multiply the numerator of a fraction by something you must multiply the denominator by the same to have the fraction keep the same value.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

{7/3}

Member

Registered: 2013-02-11

Posts: 210

Re: Simplifying Radical in Denominator

the c in top and bottom cancel each other.

Last edited by {7/3} (2013-05-24 15:34:54)

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There are 10 kinds of people in the world,people who understand binary and people who don't.

barbie19022002

Member

Registered: 2013-05-24

Posts: 1,314

Re: Simplifying Radical in Denominator

Wow, that's easy thank you {7/3}

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