There are 20 boys and 25 girls in Class 6 and 3. Girls account for ((())/(())) of the whole class, how much more girls than boys.
六3班有男生20人，女生25人，女生占全班人数的((())/(()))，女生比男生多多少．
<gadget id="calculator">25 - 20</gadget>
<output>5</output>

<gadget id="calculator">5 / 20</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>