On Arbor Day, fifth graders planted 54 trees, and sixth graders planted more than fifth graders (2/9). How many trees did the sixth graders plant?
植树节那天，五年级同学栽了54棵树，六年级同学比五年级多栽(2/9)．六年级同学栽了多少棵树？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">54 * (2/9)</gadget>
<output>12</output>

<gadget id="calculator">54 + 12</gadget>
<output>66</output>

<result>66</result>