(1/5): How much = (1/8): 5.
(1/5)：多少=(1/8)：5．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">5 / (1/8)</gadget>
<output>40</output>

<gadget id="calculator">(1/5) * 40</gadget>
<output>8</output>

<result>8</result>