Respuesta :

0.02 is rational
2 is rational
square root of 2 is irrational
square root of 1/2 is rational
Rational number is the number that can be made into ratio. In this case, 

0.02= 1/50
2= 2/1
sqrt 2= irrational
sqrt 1/2= irrational

In general, the number in sqrt mostly irrational with an exception on the number that can be solved t remove the sqrt. The example would be √4 which can become 2 or √1/4 which can become 1/2

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