The planned cost of a bridge is 18 million yuan, which is actually 1/9 lower than the plan. How much is the actual cost?
一座大桥计划造价1800万元，实际比计划节约了(1/9)，实际造价多少万元？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1_800 * (1/9)</gadget>
<output>200</output>

<gadget id="calculator">1_800 - 200</gadget>
<output>1_600</output>

<result>1_600</result>