The difference between 2.8 and 1(1/3) is equal to 1(5/6) times of a number. What is this number? (Solution of column equation)
2.8与1(1/3)的差等于一个数的1(5/6)倍，这个数是多少？(列方程解)
<gadget id="calculator">22 / 15</gadget>
<output>22/15 = around 1.466667</output>

<gadget id="calculator">11 / 6</gadget>
<output>11/6 = around 1.833333</output>

<gadget id="calculator">(22/15) / (11/6)</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>