Last month, a workshop divided the production tasks of the first batch of parts equally between workshops A and B. As a result, team A took 6 people to complete in 15 days, and team B took 5 people to complete in 12 days. The production task of the second batch of parts was evenly distributed to two workshops B and C. Group B took 7 people to complete in 8 days, and group C took 3 people to complete in 14 days. The third batch of tasks was only assigned to Group A, and it took 9 people 14 days to complete. This month, the workshop received another batch of tasks that were the same as the third batch of tasks last month, and were required to be completed within 9 days. If Group C is allowed to process, at least how many workers must be sent to process?
某车间上个月把第一批零件的生产任务平均分给了甲、乙两个车间，结果甲组用了6人15天完成，乙组用了5人12天完成．把第二批零件的生产任务平均分给了乙，丙两个车间，乙组用了7人8天完成，丙组用了3人14天完成．第三批任务只分配给了甲组，用了9人14天完成．本月该车间又接到一批任务和上月的第三批任务相同，要求在9天内完成．如果让丙组来加工，至少需派几名工人加工？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">14 / 9</gadget>
<output>14/9 = around 1.555556</output>

<gadget id="calculator">9 * (14/9)</gadget>
<output>14</output>

<gadget id="calculator">(1/2) * 14</gadget>
<output>7</output>

<result>7</result>