In a certain workshop, female workers accounted for 1/3 of the total number of workers in the workshop. After another 4 female workers were transferred, the female workers accounted for 50% of the total number of workers in the workshop. How many people were there in the original workshop?
某车间女工占全车间人数的(1/3)，又调来4名女工后，女工占全车间人数的50%，原来车间共多少人？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">4 * (1/2)</gadget>
<output>2</output>

<gadget id="calculator">4 - 2</gadget>
<output>2</output>

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

<gadget id="calculator">(1/2) - (1/3)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">2 / (1/6)</gadget>
<output>12</output>

<result>12</result>