The school planted 330 trees this year, exceeding the original plan (1/5). How many trees did the school originally plan to plant?
学校今年栽树330棵，超过原计划的(1/5)，学校原计划栽树多少棵．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">330 / (6/5)</gadget>
<output>275</output>

<result>275</result>