It is a repeating decimal.
One possible number is 12.345345345...
1/3 = 0.3333 repeating
0.692307 repeating
.72222 repeating
As a mixed number it is -13 and 1/3
3 + 13 = 16, and there is no need for a decimal point to make it a decimal number.
It is a repeating decimal.
0.173333 repeating
One possible number is 12.345345345...
12 13/100
Convert the mixed number to an improper fraction, then do the division. 3 and 1/4 = 13/4 13 divided by 4 = 3.25
1/3 = 0.3333 repeating
0.692307 repeating
.72222 repeating
As a decimal, 1/13 = .0769230769230... (It's a repeating decimal.)
The mixed number of 83 and 13/100 equals 83.13 as a decimal