The number of people in workshop A is more than that of workshop B (1/3), and the number of people in workshop B is smaller than that of workshop A
甲车间的人数比乙车间多(1/3)，乙车间人数比甲车间少多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) - 1</gadget>
<output>-2/3 = around -0.666667</output>

<gadget id="calculator">1 + (-2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

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

<result>1/4 = around 0.25</result>