Among the students playing games on the playground, boys accounted for (4/9). Later, 5 boys came, and there were as many boys as girls. How many students are playing games on the playground now?
操场上做游戏的学生中，男生占(4/9)，后来又来了5个男生，这时男生和女生人数一样多．现在操场上一共有多少个同学在做游戏？
<gadget id="calculator">9 - 4</gadget>
<output>5</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">5 / (1/5) / (1/2)</gadget>
<output>50</output>

<result>50</result>