There are 240 students in the sixth grade, the number of girls accounted for the total number of students in the midterm (7/12), and later transferred to a few girls, the number of girls accounted for the total number of students (3/5). How many girls are transferred? Please write your analysis.
六年级有学生240人，期中女生人数占总人数的(7/12)，后来又转入了几名女生，这时女生人数占总人数的(3/5)．转来女生多少人？请写出分析．
<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">1 - (7/12)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(5/12) / (2/5)</gadget>
<output>25/24 = around 1.041667</output>

<gadget id="calculator">240 * (25/24)</gadget>
<output>250</output>

<gadget id="calculator">250 - 240</gadget>
<output>10</output>

<result>10</result>