0.{_{2}**(•)}9{_{1}**(•)}-0.{_{2}**(•)}+0.{_{35}**( •)}=how much.
0.{_{2}**(•)}9{_{1}**(•)}-0.{_{2}**(•)}+0.{_{35}**(•)}=多少．
<gadget id="calculator">291 / 999</gadget>
<output>97/333 = around 0.291291</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(97/333) - (2/9)</gadget>
<output>23/333 = around 0.069069</output>

<gadget id="calculator">35 / 99</gadget>
<output>35/99 = around 0.353535</output>

<gadget id="calculator">(23/333) + (35/99)</gadget>
<output>172/407 = around 0.422604</output>

<result>172/407 = around 0.422604</result>