A class has 20 boys and 25 girls. What percentage is the number of boys compared to the number of girls?
某班有男生20人，女生25人．男生人数是女生人数的几分之几？
<gadget id="calculator">20 / 25</gadget>
<output>4/5 = around 0.8</output>

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