There are 50 students in a certain class. Three minutes after school in the afternoon, the boys were picked up by their parents (1/5), and the girls were picked up (1/6). A total of 9 children were picked up by their parents. How many girls were not picked up?
某班共有50名学生，一天下午放学后三分钟，男生被家长接走了(1/5)，女生被接走了(1/6)，共有9名小朋友被家长接走，这时还有多少女生没被接走？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">50 * (1/5)</gadget>
<output>10</output>

<gadget id="calculator">10 - 9</gadget>
<output>1</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/5) - (1/6)</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">1 / (1/30)</gadget>
<output>30</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">30 * (5/6)</gadget>
<output>25</output>

<result>25</result>