SOLUTION: Is 0.53 (with a repeating bar over the top of it) a rational or irrational number? I'm pretty sure that it's a rational number. Thanks!

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Is 0.53 (with a repeating bar over the top of it) a rational or irrational number? I'm pretty sure that it's a rational number. Thanks!      Log On


   



Question 5595: Is 0.53 (with a repeating bar over the top of it) a rational or irrational number?
I'm pretty sure that it's a rational number.
Thanks!

Answer by prince_abubu(198) About Me  (Show Source):
You can put this solution on YOUR website!
It's a rational number. A rational number can repeat a pattern endlessly. Actually, the real definition of a rational number is that it can be expressed as a/b where a and b have to be both integers (aka, no decimal places). In this case, 0.53 (53 repeating) is 53/99. We were able to express that in the form a/b. a=53, b=59, who are both integers.