New Era Garment Factory plans to produce a batch of garments this month, but actually completed the planned (3/10) in the first ten days, completed the planned (2/5) in the middle ten days, and completed the planned (1/3) in the second ten days. By what percentage did you overfulfill the plan this month?
新时代服装厂本月计划生产一批服装，实际上旬完成了计划的(3/10)，中旬完成了计划的(2/5)，下旬完成了计划的(1/3)．这个月超额完成了计划的几分之几？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

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

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

<gadget id="calculator">(3/10) + (2/5) + (1/3)</gadget>
<output>31/30 = around 1.033333</output>

<gadget id="calculator">(31/30) - 1</gadget>
<output>1/30 = around 0.033333</output>

<result>1/30 = around 0.033333</result>