The number of male workers in a factory is more than the number of female workers (1/3), how many female workers account for the total number of workers in the factory
某厂男工人数比女工人数多(1/3)，女工占全厂人数的多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3) + 1</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">1 / (7/3)</gadget>
<output>3/7 = around 0.428571</output>

<result>3/7 = around 0.428571</result>