x and y are reciprocals of each other, ((x)/3)/(3/(y))=what.
x和y互为倒数，((x)/3)/(3/(y))=多少．
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<result>1/9 = around 0.111111</result>