There are 20 kilograms of sugar, each (1/2) kilogram packs 1 bag, how many bags can be packed.
有20千克糖，每(1/2)千克装1包，可以装多少包．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">20 / (1/2)</gadget>
<output>40</output>

<result>40</result>