(1/2)+(2/4)+(1/3)+(6/9)+(1/4)+(9/12)=how much.
(1/2)+(2/4)+(1/3)+(6/9)+(1/4)+(9/12)=多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / 9</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">9 / 12</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(1/2) + (1/2) + (1/3) + (2/3) + (1/4) + (3/4)</gadget>
<output>3</output>

<result>3</result>