Express with a rational denominator, in simplest form.

Answer and explanation

Correct answer: C.

  1. Step 1: Multiply top and bottom by : .
  2. Step 2: Divide 6 by 3 to get .
Answer
.
Why not the others: : the numerator and denominator were multiplied by but the 3 on the bottom was ignored. : this is about 4.24, but is about 3.46. : the denominator is still irrational.

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