In the first half of August, the cement factory completed (2/5) of this month's plan, and in the second half of this month (2/3), the result was an overproduction of 120 tons. How many tons of cement is planned to be produced in August?
水泥厂八月份上半月完成本月计划的(2/5)，下半月完成本月计划的(2/3)，结果超产120吨，八月份计划生产水泥多少吨？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/5) + (2/3)</gadget>
<output>16/15 = around 1.066667</output>

<gadget id="calculator">(16/15) - 1</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">120 / (1/15)</gadget>
<output>1_800</output>

<result>1_800</result>