A ratio, the two inner terms are reciprocals of each other. One outer term is (11/12), and the other outer term is how much.
一个比例，两个内项互为倒数．一个外项是(11/12)，另一个外项是多少．
<gadget id="calculator">11 / 12</gadget>
<output>11/12 = around 0.916667</output>

<gadget id="calculator">1 / (11/12)</gadget>
<output>12/11 = around 1.090909</output>

<result>12/11 = around 1.090909</result>