The former term of the ratio is enlarged by 3 times, and the latter term is divided by 3, how many times the ratio is enlarged
比的前项扩大3倍，后项除以3，比值扩大多少倍
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 / (1/3)</gadget>
<output>9</output>

<result>9</result>