A liquid medicine weighs 2020 kilograms. The ratio of medicine to water is 1:100. How many kilograms does the water weigh?
一种药水2020千克，药和水的比是1：100，水重多少千克？
<gadget id="calculator">100 / 101</gadget>
<output>100/101 = around 0.990099</output>

<gadget id="calculator">2_020 * (100/101)</gadget>
<output>2_000</output>

<result>2_000</result>