Calculation: (1/8)+(1/15)+(1/24)+...+(1/143).
计算：(1/8)+(1/15)+(1/24)+…+(1/143)．
<gadget id="calculator">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 / 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">(1/3) - (1/12) - (1/13)</gadget>
<output>9/52 = around 0.173077</output>

<gadget id="calculator">(1/2) + (9/52)</gadget>
<output>35/52 = around 0.673077</output>

<gadget id="calculator">(1/2) * (35/52)</gadget>
<output>35/104 = around 0.336538</output>

<result>35/104 = around 0.336538</result>