20 kilograms is more than 16 kilograms ((())/(())), which is more than 80 meters (1/2) in meters.
20千克比16千克多((())/(()))，比80米多(1/2)是多少米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">80 * (3/2)</gadget>
<output>120</output>

<result>120</result>