There are 36 students in Class 1, of which girls account for (4/9). Several girls were transferred in the second semester. At this time, the number of girls accounted for the total number of students (9/19). How many girls were transferred in the second semester?
六1班有36名学生，其中女生占(4/9)，第二学期转来几名女生，这时女生人数占总人数的(9/19)．第二学期转来了几名女生？
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">1 - (4/9)</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">36 * (5/9)</gadget>
<output>20</output>

<gadget id="calculator">9 / 19</gadget>
<output>9/19 = around 0.473684</output>

<gadget id="calculator">1 - (9/19)</gadget>
<output>10/19 = around 0.526316</output>

<gadget id="calculator">20 / (10/19)</gadget>
<output>38</output>

<gadget id="calculator">38 - 36</gadget>
<output>2</output>

<result>2</result>