The former term of the ratio is reduced by 3 times, and the latter term is enlarged by 3 times, how many times the ratio is reduced
比的前项缩小3倍，后项扩大3倍，比值缩小多少倍
<gadget id="calculator">36 / 6</gadget>
<output>6</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6 / (2/3)</gadget>
<output>9</output>

<result>9</result>