Calculation: ((1-(1/2)+(1/3)-(1/4)+(1/5)-(1/6))/((1/(1+7))+(1 /(2+8))+(1/(3+9)))).
计算：((1-(1/2)+(1/3)-(1/4)+(1/5)-(1/6))/((1/(1+7))+(1/(2+8))+(1/(3+9))))．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (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">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/3) - (1/4)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/5) - (1/6)</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">(1/2) + (1/12) + (1/30)</gadget>
<output>37/60 = around 0.616667</output>

<gadget id="calculator">1 + 7</gadget>
<output>8</output>

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

<gadget id="calculator">2 + 8</gadget>
<output>10</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">3 + 9</gadget>
<output>12</output>

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

<gadget id="calculator">(1/8) + (1/10) + (1/12)</gadget>
<output>37/120 = around 0.308333</output>

<gadget id="calculator">(37/60) / (37/120)</gadget>
<output>2</output>

<result>2</result>