8 is more than 25% of a number (2/5), find the number.
8比一个数的25%多(2/5)，求这个数．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">8 - (2/5)</gadget>
<output>38/5 = around 7.6</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(38/5) / (1/4)</gadget>
<output>152/5 = around 30.4</output>

<result>152/5 = around 30.4</result>