8, 32, 16 can be combined with a number to form a ratio.
8，32，16配上一个数多少可以组成比例．
<gadget id="calculator">16 / 32</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">8 * (1/2)</gadget>
<output>4</output>

<result>4</result>