SOLUTION: Simplify. Four over the square root of seven. It can also be said as: 4 divided by the square root of 7.

Algebra ->  Radicals -> SOLUTION: Simplify. Four over the square root of seven. It can also be said as: 4 divided by the square root of 7.      Log On


   

Question 865089: Simplify. Four over the square root of seven. It can also be said as: 4 divided by the square root of 7.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply top and bottom of the fraction by sqrt%287%29 to rationalize the denominator.


4%2Fsqrt%287%29


%284%2Asqrt%287%29%29%2F%28sqrt%287%29%2Asqrt%287%29%29


%284%2Asqrt%287%29%29%2F%28sqrt%287%2A7%29%29


%284%2Asqrt%287%29%29%2F%28sqrt%2849%29%29


%284%2Asqrt%287%29%29%2F%287%29


=======================================================


So 4%2Fsqrt%287%29 simplifies to %284%2Asqrt%287%29%29%2F%287%29


You can rewrite it as %284%2F7%29%2Asqrt%287%29 but that's not much of a difference.