There is a batch of goods at the station, the total (2/5) was transported in the morning, and the morning (15/16) was transported in the afternoon, leaving 27 tons undelivered. How many tons are there in total in this batch?
站有一批货物，上午运走了总数的(2/5)，下午运走的是上午的(15/16)，还剩下27吨没有运，这批货物共有多少吨？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">15 / 16</gadget>
<output>15/16 = around 0.9375</output>

<gadget id="calculator">(2/5) * (15/16)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (2/5) - (3/8)</gadget>
<output>9/40 = around 0.225</output>

<gadget id="calculator">27 / (9/40)</gadget>
<output>120</output>

<result>120</result>