SOLUTION: I need help with figuring out how binomials can be solved when you have a fraction with a variable. For example, {{{sqrt (2) / sqrt (4)}}}and solve it. My teacher t

Question 608344: I need help with figuring out how binomials can be solved when you have a fraction with a variable. For example,

and solve it. My teacher told me that you have to multiply the denominator by both the numerator and the denominator. so then the answer would be . So i don't understand why she does that.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!

=
Not a good example.
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Multiply NUM & DEN by sqrt(3)
=
=
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The idea is to get the radicals out of the denominator.

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