Lele takes less time (1/4) than Benben to do the same homework, so how much more efficient is Lele in doing homework than Benben?
做同样的家庭作业，乐乐所用的时间比奔奔少(1/4)，那么乐乐做作业效率比奔奔高几分之几？
<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">4 * (3/4)</gadget>
<output>3</output>

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

<gadget id="calculator">(1/3) - (1/4)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) / (1/4)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>