factory has 320 male workers and 180 female workers. How many times more male workers than female workers? What percentage is the number of female workers compared to the number of male workers? By what percentage are male workers more than female workers? By what percentage are the number of female workers less than the number of male workers?
某厂有男工320人，女工180人．男工人数是女工人数的几倍？女工人数是男工人数的几分之几？男工人数比女工人数多几分之几？女工人数比男工人数少几分之几？
<gadget id="calculator">320 - 180</gadget>
<output>140</output>

<gadget id="calculator">140 / 320</gadget>
<output>7/16 = around 0.4375</output>

<result>7/16 = around 0.4375</result>