The ratio of the number of boys to girls in a certain elementary school is 16:13. Later, a few girls transferred to this school, and the ratio of boys to girls became 6:5. At this time, there were 880 students in total. Ask the girls who transferred how many people?
某小学男、女生人数之比是16：13，后来有几位女生转学到这所学校，男、女生人数之比变成为6：5，这时全体学生共有880人，问转学来的女生有多少人？
<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<gadget id="calculator">6 / 11</gadget>
<output>6/11 = around 0.545455</output>

<gadget id="calculator">880 * (6/11)</gadget>
<output>480</output>

<gadget id="calculator">880 - 480</gadget>
<output>400</output>

<gadget id="calculator">13 / 16</gadget>
<output>13/16 = around 0.8125</output>

<gadget id="calculator">480 * (13/16)</gadget>
<output>390</output>

<gadget id="calculator">400 - 390</gadget>
<output>10</output>

<result>10</result>