Grandma Chen sells eggs. On the first day, she sells half and half of the eggs in the basket, and on the second day, she sells half and half of the remaining eggs. At this time, there are still 2 eggs in the basket. How many eggs were there in Grandma Chen's basket?
陈奶奶卖鸡蛋，第一天卖出篮子里的鸡蛋的一半又半个，第二天又卖出了剩下的鸡蛋的一半又半个，这时篮子里还有2个鸡蛋．陈奶奶的篮子里原来有多少个鸡蛋．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 + (1/2)</gadget>
<output>5/2 = around 2.5</output>

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

<gadget id="calculator">5 + (1/2)</gadget>
<output>11/2 = around 5.5</output>

<gadget id="calculator">(11/2) / (1/2)</gadget>
<output>11</output>

<result>11</result>