Simple calculation: (7/12)/(7/8)+(1/12)*(1/8)/(1/7).
简便计算：(7/12)/(7/8)+(1/12)*(1/8)/(1/7)．
<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">(7/12) / (7/8)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">(1/8) / (1/7)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">(1/12) * (7/8)</gadget>
<output>7/96 = around 0.072917</output>

<gadget id="calculator">(2/3) + (7/96)</gadget>
<output>71/96 = around 0.739583</output>

<result>71/96 = around 0.739583</result>