Answers

2014-03-02T07:18:23+05:30
The number you have provided ie root4/9 is a  rational number.
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2014-03-02T08:08:03+05:30
In this world there is no irrational number actually so every number is rational. Root 4/9 = 2/3 its a rational number and every others as well. Ther is only one Irrational number in math which is π. Nothing else. 
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