The school planned to use 300,000 yuan to decorate the multimedia classroom, but the actual cost was less than the plan (2/5). How much did the decoration actually cost?
学校装修多媒体教室计划用30万元，实际花费比计划节约了(2/5)，实际装修花了多少钱？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">30 * (3/5)</gadget>
<output>18</output>

<result>18</result>