Salt is brine (1/11), if the salt is 2 grams, how many grams is the water?
盐是盐水的(1/11)，如果盐是2克，水是多少克．
<gadget id="calculator">1 / 11</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">2 / (1/11)</gadget>
<output>22</output>

<gadget id="calculator">22 - 2</gadget>
<output>20</output>

<result>20</result>