Processing 360 parts, Master Zhang processed (2/5) of these parts in 6 days. According to this calculation, how many days will it take to complete the remaining parts?
加工360个零件，张师傅6天加工了这批零件的(2/5)．照这样计算，剩下的零件还要多少天完成？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(2/5) / 6</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(3/5) / (1/15)</gadget>
<output>9</output>

<result>9</result>