Among the workers in a certain factory, young workers account for (3/4), and the rest are old workers. What percentage of young workers do older workers make up?
某工厂工人中，青年工人占(3/4)，其余是老工人．老工人占青年工人的几分之几？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) / (3/4)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>