Calculation: 6/((1/12)-(1/13)).
计算：6/((1/12)-(1/13))．
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<gadget id="calculator">(1/12) - (1/13)</gadget>
<output>1/156 = around 0.00641</output>

<gadget id="calculator">6 / (1/156)</gadget>
<output>936</output>

<result>936</result>