a*(1/3)=6, then (1/2)a+(1/9)a=how many.
a*(1/3)=6，则(1/2)a+(1/9)a=多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / (1/3)</gadget>
<output>18</output>

<gadget id="calculator">(1/2) * 18</gadget>
<output>9</output>

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

<gadget id="calculator">(1/9) * 18</gadget>
<output>2</output>

<gadget id="calculator">9 + 2</gadget>
<output>11</output>

<result>11</result>