A decimal, if its decimal part is enlarged by 5 times, it becomes 17.92; if its decimal part is enlarged by 8 times, it becomes 20.38, then what is this decimal?
一个小数，如果把它的小数部分扩大5倍，它就变成17.92；如果把它的小数部分扩大8倍，它就变成20.38，则这个小数是多少．
<gadget id="calculator">20.38 - 17.92</gadget>
<output>2.46</output>

<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<gadget id="calculator">2.46 / 3</gadget>
<output>0.82</output>

<gadget id="calculator">0.82 * 5</gadget>
<output>4.1</output>

<gadget id="calculator">17.92 - 4.1</gadget>
<output>13.82</output>

<result>13.82</result>