Calculation: (6/13)/9*(8/13).
计算：(6/13)/9*(8/13)．
<gadget id="calculator">6 / 13</gadget>
<output>6/13 = around 0.461538</output>

<gadget id="calculator">(6/13) / 9</gadget>
<output>2/39 = around 0.051282</output>

<gadget id="calculator">8 / 13</gadget>
<output>8/13 = around 0.615385</output>

<gadget id="calculator">(2/39) * (8/13)</gadget>
<output>16/507 = around 0.031558</output>

<result>16/507 = around 0.031558</result>