There are 20 boys and 25 girls in Class 1 of the sixth grade. They have participated in sports activities. What percentage of the number of boys is the number of girls?
六年级一班有男生20人，女生25人，参加了体育活动，男生人数是女生的百分之多少？
<gadget id="calculator">20 / 25</gadget>
<output>4/5 = around 0.8</output>

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