Among the four numbers 75%, (5/6), (11/12) and (8/9), what is the difference between the largest number and the smallest number?
在75%、(5/6)、(11/12)、(8/9)四个数中，最大数与最小数的差是多少．
<gadget id="calculator">11 / 12</gadget>
<output>11/12 = around 0.916667</output>

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(11/12) - (3/4)</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>