Warehouse A has 5,400 tons of fertilizers, and sells (2/9), which is exactly half of the tons of fertilizers in Warehouse B. How many tons of fertilizers does Warehouse B have?
甲仓库有化肥5400吨，卖出(2/9)，卖出的正好是乙仓库化肥吨数的一半，乙仓库有化肥多少吨？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(2/9) / (1/2)</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">5_400 * (4/9)</gadget>
<output>2_400</output>

<result>2_400</result>