To prepare a potion, the ratio of medicine to water is 1:5, how much medicine accounts for the potion
配制一种药水，药与水的比是1：5，药占药水的多少
<gadget id="calculator">1 + 5</gadget>
<output>6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>