There are 25 girls in Class 51, 5 more than boys, what fraction of the number of boys is the number of girls?
五1班有25名女生，比男生多5名，男生人数是女生人数的几分之几？
<gadget id="calculator">25 - 5</gadget>
<output>20</output>

<gadget id="calculator">20 / 25</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>