SOLUTION: CAN YOU TELL ME IF THE SQUARE ROOT OF 16/5 IS RATIONAL OR IRRATIONAL? i SAY IRRATIONAL BUT THE COMPUTER IS SAYING THE OPPOSITE. THANK YOU.

Algebra ->  Test  -> Lessons -> SOLUTION: CAN YOU TELL ME IF THE SQUARE ROOT OF 16/5 IS RATIONAL OR IRRATIONAL? i SAY IRRATIONAL BUT THE COMPUTER IS SAYING THE OPPOSITE. THANK YOU.      Log On


   

Question 686570: CAN YOU TELL ME IF THE SQUARE ROOT OF 16/5 IS RATIONAL OR IRRATIONAL? i SAY IRRATIONAL BUT THE COMPUTER IS SAYING THE OPPOSITE. THANK YOU.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt(16/5) cannot be written as a fraction of two whole numbers, so it's irrational

however,

sqrt(16/25) can be written as a fraction of two whole numbers, so it's rational