When a number is added, subtracted, and divided by itself, the sum of its sum, difference, and quotient is 11.66. What is this number?
一个数与它自己相加、相减、相除，其和、差、商相加的和是11.66，这个数是几？
<gadget id="calculator">11.66 - 1</gadget>
<output>10.66</output>

<gadget id="calculator">10.66 / 2</gadget>
<output>5.33</output>

<result>5.33</result>