The average of three numbers is 6, the ratio of these three numbers is (1/2):(1/3):(5/6), what is the largest number among these three numbers.
三个数的平均数是6，这三个数的比是(1/2)：(1/3)：(5/6)，这三个数中最大的数是多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(1/2) + (1/3) + (5/6)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">3 / (5/3)</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">6 * (9/5) * (5/6)</gadget>
<output>9</output>

<result>9</result>