The ratio of a ratio is (3/4), its former term is 12, and what is the latter term.
一个比的比值是(3/4)，它的前项是12，后项是多少．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">12 / (3/4)</gadget>
<output>16</output>

<result>16</result>