Is -3.25 rational or irrational?

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Answer 1 · 2018-02-22T20:55:19

rational

A number is irrational if it is being multiplied by $sqrt(-1)=i$ .

Answer 2 · 2018-02-22T21:04:48

$-3.25 = -13/4$ is rational

A number is rational if and only if it can be expressed in the form $p/q$ for some integers $p$ and $q$ .

We find:

$-3.25 * 4 = -13$

So:

$-3.25 = -13/4" "$ is rational.