Classify the following number as rational and irrational. .

Foundation

Mathematics Foundation

Irrational Number

Properties of Real Number

Rationalisation

Question

Classify the following number as rational and irrational. $\sqrt{\frac{3}{81}}$ .

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

$\sqrt{\frac{3}{81}} = \frac{\sqrt{3}}{9} = \frac{1}{3 \sqrt{3}}$ .

It is an irrational number.