"Three Gorges Dam" is a famous tourist attraction in Yichang. It received about 25 million tourists in the whole year last year. (4/5) of the number of tourists received in the first half of the year. How many million tourists did you receive on average every month in the third quarter?
"三峡大坝"是宜昌的一个著名的旅游景点，去年全年共接待游客约2500万人次，其中上半年接待游客人数是全年总人数的(3/5)，第三季度接待游客数是上半年接待游客数的(4/5)．第三季度平均每月接待游客多少万人？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) / 3</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">2_500 * (3/5) * (4/15)</gadget>
<output>400</output>

<result>400</result>