How many kilograms is 50 kilograms (1/2).
50千克是多少千克的(1/2)．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">50 / (1/2)</gadget>
<output>100</output>

<result>100</result>