Calculation: (13/16)*(8/13)=how much.
计算：(13/16)*(8/13)=多少．
<gadget id="calculator">13 / 16</gadget>
<output>13/16 = around 0.8125</output>

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

<gadget id="calculator">(13/16) * (8/13)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>