There are 36 students reading in the reading room of the school, of which girls accounted for (4/9), and how many girls came to read later, at this time, the number of girls accounted for the total number of readers (9/19), how many students there were later Girls come to read books?
学校阅览室里有36名学生在看书，其中女生占(4/9)，后来又有几名女生来看书，这时女生人数占所有看书人数的(9/19)，问后来又有多少名女生来看书？
<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">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">(5/9) / (10/19)</gadget>
<output>19/18 = around 1.055556</output>

<gadget id="calculator">36 * (19/18)</gadget>
<output>38</output>

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

<result>2</result>