The air-conditioning factory completed the annual planned tasks in the first half of last year (11/16), and completed the same amount in the second half and the first half of the year. What percentage of the annual air-conditioning factories actually exceeded the annual planned tasks last year?
空调厂去年上半年完成全年计划任务的(11/16)，下半年和上半年完成的同样多，空调厂去年实际超额完成全年计划任务的几分之几？
<gadget id="calculator">11 / 16</gadget>
<output>11/16 = around 0.6875</output>

<gadget id="calculator">(11/16) - 1</gadget>
<output>-5/16 = around -0.3125</output>

<gadget id="calculator">(11/16) + (-5/16)</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>