It is known that A and B can complete a project in 18 days. After 6 days of self-cultivation, Team A still has (3/4) of the whole project. If this project is done by Team B alone from beginning to end, how many days can it be completed?
一项工程，已知甲乙两人合修18天可以完成．甲队独修6天后，还剩下全工程的(3/4)．如果这项工程自始至终由乙队独修，多少天可以完成．
<gadget id="calculator">1 / 18</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(1/4) / 6</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">(1/18) - (1/24)</gadget>
<output>1/72 = around 0.013889</output>

<gadget id="calculator">1 / (1/72)</gadget>
<output>72</output>

<result>72</result>