There is a batch of goods in the warehouse. The first shipment (2/9) and the second shipment (1/6) leave 66 tons. How many tons of goods are there in the warehouse?
仓库有一批货物，第一次运出(2/9)，第二次运出(1/6)，还剩下66吨，仓库原来有货物多少吨？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (2/9) - (1/6)</gadget>
<output>11/18 = around 0.611111</output>

<gadget id="calculator">66 / (11/18)</gadget>
<output>108</output>

<result>108</result>