In a residential area, the number of camphor trees accounts for 40% of the total number of trees. In order to improve the environment this year, another 50 camphor trees were planted, so that the number of camphor trees accounted for (5/11) of the total number of trees. How many trees were there in total in this community?
某居民小区内，香樟树的棵数占所有树木总数的40%．今年为了改善环境，又栽种了50棵香樟树，这样使得香樟树的棵树占全部树木总棵树的(5/11)．这个小区内原来一共有树木多少棵？
<gadget id="calculator">11 - 5</gadget>
<output>6</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">5 - 2</gadget>
<output>3</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(5/6) - (2/3)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">50 / (1/6)</gadget>
<output>300</output>

<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">300 / (3/5)</gadget>
<output>500</output>

<result>500</result>