Three classes in the fifth grade held a mathematics competition, and the number of participants in the first class accounted for (1/3) of the total number of participants in the whole grade. The ratio of the number of people participating in the competition between the second class and the third class is 11:13. The second class has 8 people less than the third class. How many people in the first class participated in the math competition?
五年级三个班举行数学竞赛，一班参加比赛的占全年级参赛人数的(1/3)．二班与三班参加比赛的人数比是11：13，二班比三班少8人，一班有多少人参加了数学竞赛？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">11 + 13</gadget>
<output>24</output>

<gadget id="calculator">13 / 24</gadget>
<output>13/24 = around 0.541667</output>

<gadget id="calculator">11 / 24</gadget>
<output>11/24 = around 0.458333</output>

<gadget id="calculator">(13/24) - (11/24)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(2/3) * (1/12)</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">8 / (1/18)</gadget>
<output>144</output>

<gadget id="calculator">144 * (1/3)</gadget>
<output>48</output>

<result>48</result>