A sales company completed sales tasks last year as follows: completed in the first quarter (1/4), completed in the second quarter (1/3), completed in the third quarter (2/5), completed in the fourth quarter (5/12), What percentage of the annual sales task has been overfulfilled?
某销售公司去年完成销售任务情况如下：第一季度完成(1/4)，第二季度完成(1/3)，第三季度完成(2/5)，第四季度完成(5/12)，超额完成全年销售任务的几分之几？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(1/4) + (1/3) + (2/5) + (5/12)</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">(7/5) - 1</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>