Calculation: (16/3): 0.4=(16/7): x.
计算：(16/3)：0.4=(16/7)：x．
<gadget id="calculator">16 / 7</gadget>
<output>16/7 = around 2.285714</output>

<gadget id="calculator">(16/7) * 0.4</gadget>
<output>0.914286</output>

<gadget id="calculator">16 / 3</gadget>
<output>16/3 = around 5.333333</output>

<gadget id="calculator">0.914286 / (16/3)</gadget>
<output>0.171429</output>

<result>0.171429</result>