Li Hua achieved excellent results in the "Young Eagle Competition" activity, among which the learning chapters accounted for (4/9) of the total number of his chapters, the discipline chapters accounted for (2/9) of the total number of his chapters, and the other chapters What percentage of his total number of chapters?
李华在"雏鹰争章"活动中取得了优异的成绩，其中得的学习章占他得章总数的(4/9)，纪律章占他得章总数的(2/9)，其它章占他得章总数的几分之几？
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 - (4/9) - (2/9)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>