Suppose A*B=((A+B)/(A*B)), then 4*4*10=how much.
设A※B=((A+B)/(A*B))，则4※4※10=多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) + 10</gadget>
<output>21/2 = around 10.5</output>

<gadget id="calculator">(1/2) * 10</gadget>
<output>5</output>

<gadget id="calculator">(21/2) / 5</gadget>
<output>21/10 = around 2.1</output>

<result>21/10 = around 2.1</result>