There are 30.3 kilograms of liquid medicine, the mass ratio of medicine powder and water is 1:100, how many kilograms of medicine powder?
有30.3千克药水，药粉和水的质量比是1：100，其中药粉多少千克？
<gadget id="calculator">1 + 100</gadget>
<output>101</output>

<gadget id="calculator">1 / 101</gadget>
<output>1/101 = around 0.009901</output>

<gadget id="calculator">30.3 * (1/101)</gadget>
<output>0.3</output>

<result>0.3</result>