300kg is less than how much (1/6).
300kg比多少少(1/6)．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">300 / (5/6)</gadget>
<output>360</output>

<result>360</result>