There is insufficient information for us to understand this question. Please edit the question to include more context or relevant information. It would also be useful to develop the habit of checking your questions for completeness before posting them. Since there is no visible decimal point it is not possible to distinguish between 3.888... repeating or .383838... repeating.
what is 0.194 as a repeating fraction
0.14 repeating as a fraction = 14/99
If you mean: 0.151515.....repeating then as a fraction it is 5/33
3.1 repeating, as a rational fraction is 28/9.
0.13333333 repeating in fraction = 12/90 or 2/15
It is -38/99
38/99
38/100 or reduced 19/50.
It is -38/99, which cannot be simplified.
Because it can be expressed as a fraction in the form of 38/9
If by "negative 38" you mean "-.38383838..." (correct notation would be to put a bar over the "38"), the fractional form of that is -38/99.
If that is a rounded repeating decimal then it is 38/9. If that is a terminating decimal then it is 3888888888888889/1000000000000000
38/9 yes, but it could also be 4 2/9 if you like to simplify things.
what is 0.194 as a repeating fraction
0.78 repeating as a fraction = 78/99
0.14 repeating as a fraction = 14/99
If you mean: 0.151515.....repeating then as a fraction it is 5/33