There is a batch of coal that transported 7.4 tons on the first day and 8.2 tons on the second day. (3/5) of this batch of coal was shipped in two days. How many tons did this batch of coal originally have?
有一批煤，第一天运7.4吨，第二天运8.2吨，两天共运了这批煤的(3/5)，这批煤原来一共有多少吨？
<gadget id="calculator">7.4 + 8.2</gadget>
<output>15.6</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">15.6 / (3/5)</gadget>
<output>26</output>

<result>26</result>