Question

Is 6.48 a rational number?

Answer 1

`6.48` is clearly rational

Explanation:

Rational numbers are those which can be written as a fraction (ie as a ratio between two quantities.)

A rational number can be written as `a/b, "where " a and b " are integers, but " b!=0`

Rational numbers include all the integers, all the vulgar fractions as well as the terminating and recurring decimals.

Irrational numbers cannot be written as a fraction and are infinite, non-recurring decimals, for example. `pi, sqrt 10, sqrt 33, sqrt 88`

What about `6.48?`

It is a terminating decimal. (it ends)
It can be written as `648/100`

It is the ratio: `162:25`

`6.48` is clearly rational