A factory has 25 male workers and 20 female workers, how many percent are female workers less than male workers?
某工厂有男工人25人，女工人20人，女工人比男工人少百分之几？
<gadget id="calculator">25 - 20</gadget>
<output>5</output>

<gadget id="calculator">5 / 25</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>