There are 45 students in Class 1 of the fifth grade, of which 24 are girls. What percentage of the girls are boys?
五年级一班有45个学生，其中女生有24个，男生人数占女生的几分之几？
<gadget id="calculator">45 - 24</gadget>
<output>21</output>

<gadget id="calculator">21 / 24</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>