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Irrational numbers is defined as something that cannot be expressed as a fraction .

Now I got a question . So is "120%" an integer or irrational number ?

Do I take 120% as 1.2 or just 120% as an integer (ignoring the % sign)

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    $\begingroup$ What does it have to do with irrationals anyway? $\endgroup$ – Vim Jun 19 '16 at 14:41
  • $\begingroup$ $\%$ just means $1/100$. $\endgroup$ – egreg Jun 19 '16 at 15:14
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$120\%$ means a scalar factor of ${6\over5}\in{\mathbb Q}$ when applied to real quantities, or quantities referred to a unit, like dollars. But nobody would declare that the solution of the equation $5x-6=0$ is $120\%$.

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