A batch of goods was shipped, 24 tons were shipped on the first day, and (2/5) of the goods were shipped the next day, and 15 tons of goods were not shipped. How many tons of this batch of goods are there?
运一批货物，第一天运了24吨，第二天运了这批货物的(2/5)，还剩15吨货物没有运，这批货物共有多少吨？
<gadget id="calculator">24 + 15</gadget>
<output>39</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">39 / (3/5)</gadget>
<output>65</output>

<result>65</result>