Choose three numbers from the six numbers (11/12), 1.1, (7/4), 1(2/3), 1(1/4), and (6/5), and record them as A and B respectively , C． It is required that the selected three numbers make A*(BC) as large as possible, then what is the result of A*(BC) expressed in the simplest fraction.
从(11/12)，1.1，(7/4)，1(2/3)，1(1/4)，(6/5)六个数中选出三个数，分别记作A、B、C．要求选出的三个数使得A*(B-C)尽量大，那么A*(B-C)的结果用最简分数表示是多少．
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">7 / 4</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">11 / 12</gadget>
<output>11/12 = around 0.916667</output>

<gadget id="calculator">(7/4) - (11/12)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(5/3) * (5/6)</gadget>
<output>25/18 = around 1.388889</output>

<result>25/18 = around 1.388889</result>