Add a parenthesis to the formula 96-96/(20-12), and the result is equal to 0. 
给算式96-96/(20-12)加一个小括号后变成多少，其结果等于0．
<gadget id="calculator">96 - 96</gadget>
<output>0</output>

<gadget id="calculator">20 - 12</gadget>
<output>8</output>

<gadget id="calculator">0 / 8</gadget>
<output>0</output>

<result>0</result>