There are 153 students in the dance class, of which 144 are female students. How many times are the number of female students more than male students?
舞蹈班有153人，其中女同学有144人，女同学的人数是男同学的多少倍？
<gadget id="calculator">153 - 144</gadget>
<output>9</output>

<gadget id="calculator">144 / 9</gadget>
<output>16</output>

<result>16</result>