The chemical plant actually burned 320 tons of coal in May, saving (1/9) compared to the plan. How many tons of coal are planned to burn?
化工厂五月份实际烧煤320吨，比计划节约了(1/9)，计划烧煤多少吨？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 - (1/9)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">320 / (8/9)</gadget>
<output>360</output>

<result>360</result>