Solution ratio: (3/4): 0.5=16: x.
解比例：(3/4)：0.5=16：x．
<gadget id="calculator">0.5 * 16</gadget>
<output>8</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">8 / (3/4)</gadget>
<output>32/3 = around 10.666667</output>

<result>32/3 = around 10.666667</result>