Calculation: 9+2(2/9)/2.5+0.{_{1}**(•)}=how much.
计算：9+2(2/9)/2.5+0.{_{1}**(•)}=多少．
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">9 + (8/9) + (1/9)</gadget>
<output>10</output>

<result>10</result>