Solution ratio X: (5/12) = 60: 12.5.
解比例X：(5/12)=60：12.5．
<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">60 * (5/12)</gadget>
<output>25</output>

<gadget id="calculator">25 / 12.5</gadget>
<output>2</output>

<result>2</result>