Question

Is -0.033333 a rational number?

Answer 1

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.