A steelmaking plant completed (2/3) of the annual plan in the first half of the year, and completed as much in the second half of the year as the first half of the year, so that the annual production can exceed 20,000 tons. How many tons is the planned output for the whole year?
某炼钢厂上半年完成了全年计划的(2/3)，下半年和上半年完成的一样多，这样全年可超产2万吨．求全年的计划产量是多少万吨？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) * 2</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(4/3) - 1</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / (1/3)</gadget>
<output>6</output>

<result>6</result>