You can put this solution on YOUR website! Are you sure you mean 5th root of 2/3 ??/
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If you do you need to multiply numerator and denominator by 3^4 to get:
[(2*3^4)^(1/5)]/3
Another way to say this is "5th root of (2*3^4)"divided by 3
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Cheers,
Stan H.