Teacher Wang wants to make a batch of paper flowers, and it takes 6 hours to make the paper flowers alone. Since the students helped make the paper flowers (1/4), then the rest of the flowers will be made by Teacher Wang. How many hours will it take to make the paper flowers?
王老师要扎一批纸花，单独扎需要6小时扎完，由于同学们帮忙扎了(1/4)，那么剩下的花由王老师扎，还要用几小时扎完？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(3/4) / (1/6)</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>