If the former term of a ratio is reduced to (1/2) times and the latter term is enlarged by 4 times, how many times will the ratio be reduced
一个比的前项缩小到(1/2)倍，后项扩大4倍，则该比的比值缩小多少倍
<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<result>8</result>