The third grade had a New Year's party, and Class 4 of the third grade bought some colored balls to decorate the classroom. Among them, red balls account for (1/6) of the total number, yellow balls stand for (2/6) of the total number, and the rest are colored balls. What percentage of the total number are colored balls?
三年级开新年联欢会，三年4班买了一些彩球布置教室．其中红色球占总数的(1/6)，黄色球站总数的(2/6)，剩下的是花彩球，花彩球占总数的几分之几？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/6) - (1/3)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>