SOLUTION: is -0.685 a rational or irrational number? I've asked before, but i still don't understand if negative numbers are rational or irrational? Thank you

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Question 6163: is -0.685 a rational or irrational number?
I've asked before, but i still don't understand if negative numbers are rational or irrational?
Thank you
Answer by guapa(62) About Me  (Show Source):
You can put this solution on YOUR website!
A rational number can also be defined as any number that has a terminating or repeating decimal representation. So, irrational numbers can be defined as any number that has a nonrepeating decimal representation.
Ex:
a) 0.75, 0.125, 0.28 are terminating decimals and thus rational numbers.
b) 0.3333..., 0.666...,0.141414... are repeating decimals and thus rational numbers.
c) pi=3.1415926535, sqrt%282%29=1.41421356, -sqrt%282%29 = -1.41421356
are nonrepeating decimals and thus irrational.
Real numbers: Rational or Irrational(-,+)