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here it is

You mean a rational expression.

A simplified rational fraction can't have radicals in the denominator.

|dw:1356657899257:dw|

cross multiplication?

Now you need to look at all prime factors of 98 and twelve.

No, we're just simplifying, one step at a time.

What are the prime factors of 98 and of 12?

7 7 2 and 3 2 2

Great. Every two of the same factor can be taken out of the root.

so 7 2 and 3 2

|dw:1356658078286:dw|

|dw:1356658116825:dw|

what would i do to remove it?

|dw:1356658236596:dw|

@mathstudent55 times it self?

so my denominator would be 18?

multiply by the same

Exactly. So now look at the next drawing:

|dw:1356658755142:dw|

wait what do you mean do i just get\[18\] as my denominator?

You have 2 * sqrt(9) in the denominator. What is sqrt(9)?

Right. So now you have this:
|dw:1356658960784:dw|

One more step.

6 is the denominator

Correct!

|dw:1356659058827:dw|

This is considered simplified.

thank you for the help

You're welcome.