The ratio of powder to water in a potion is 1:100, how many kg of potion can be prepared with 2 kg of powder.
一种药水中的药粉和水的比为1：100，用2千克的药粉可配制药水多少千克．
<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">2 / (1/101)</gadget>
<output>202</output>

<result>202</result>