The Qianjin fishing boat went out to sea for 13 days in the first half of August, fishing an average of 52 tons per day; in the second half of August, it went to sea for 12 days and caught a total of 584 tons of fish. Calculated by the number of days out in this month, how many tons are fished per day on average?
前进号捕鱼船，八月份上半月出海13天，平均每天捕鱼52吨；下半月出海12天，共捕鱼584吨，这个月按出海天数计算，平均每天捕鱼多少吨？
<gadget id="calculator">52 * 13</gadget>
<output>676</output>

<gadget id="calculator">676 + 584</gadget>
<output>1_260</output>

<gadget id="calculator">13 + 12</gadget>
<output>25</output>

<gadget id="calculator">1_260 / 25</gadget>
<output>252/5 = around 50.4</output>

<result>252/5 = around 50.4</result>