If the former term of a ratio is doubled and the latter term is quadrupled, how many times is its ratio reduced?
一个比的前项扩大2倍，后项扩大4倍，它的比值缩小多少倍
<gadget id="calculator">8 / 4 / 1</gadget>
<output>2</output>

<gadget id="calculator">4 / 1 / 2</gadget>
<output>2</output>

<result>2</result>