The former item of the ratio is expanded by 4 times, and the latter item of the ratio is expanded by 2 times. Compared with the original ratio, the ratio is enlarged by how many times
比的前项扩大4倍，比的后项扩大2倍，比值与原比值相比较扩大多少倍
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/3) / (1/6)</gadget>
<output>2</output>

<result>2</result>