(1/4)+(1/12)+(1/24)+(1/40)+(1/60)+(1/84)+(1/112)=how much.
(1/4)+(1/12)+(1/24)+(1/40)+(1/60)+(1/84)+(1/112)=多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">1 / 24</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">1 / 40</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">1 / 60</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">1 / 84</gadget>
<output>1/84 = around 0.011905</output>

<gadget id="calculator">1 / 112</gadget>
<output>1/112 = around 0.008929</output>

<gadget id="calculator">(1/4) + (1/12) + (1/24) + (1/40) + (1/60) + (1/84) + (1/112)</gadget>
<output>7/16 = around 0.4375</output>

<result>7/16 = around 0.4375</result>