A kind of salt water, the ratio of salt to water is 1:10, how much water accounts for the salt water.
一种盐水，盐与水的比为1：10，水占盐水的多少．
<gadget id="calculator">1 + 10</gadget>
<output>11</output>

<gadget id="calculator">10 / 11</gadget>
<output>10/11 = around 0.909091</output>

<result>10/11 = around 0.909091</result>