What is the sum of 2 (1/2)?
2个(1/2)合在一起是多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<result>1</result>