Xiaodong's weight is 40 kilograms, Xiaonan is heavier than Xiaodong (1/20), how much heavier is Xiaonan than Xiaodong?
小东的体重是40千克，小南比小东重(1/20)，小南体重比小东重多少千克？
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

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

<result>2</result>