Is -0.033333 a rational number?

1 Answer
Apr 9, 2015

A rational number is defined as a number that can be written as a ratio.
In the case of -0.033333, it is possible to write the number as a fraction.

Let x=-0.033333
100x=-3.33333
10x=-0.33333
100x-10x= -3.33333-(-0.33333)=3
90x=3
x or -0.033333 =3/90=1/30

As -0.033333 can be written as a fraction of 1/30, it is a rational number.