There are 27 red, blue, and white glass balls of the same size, arranged in the order of 2 red balls, 3 blue balls, and 4 white balls. The number of blue glass balls accounts for ((())/(())) of the total. (fill in the simplest fraction)
有同样大小的红、蓝、白玻璃球共27个，按2个红球、3个蓝球，4个白球的顺序排列．蓝玻璃球的个数占总数的((())/(()))．(填最简分数)
<gadget id="calculator">2 + 3 + 4</gadget>
<output>9</output>

<gadget id="calculator">27 / 9</gadget>
<output>3</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">9 / 27</gadget>
<output>1/3 = around 0.333333</output>

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