Step-by-step explanation:
To convert from a repeating decimal number to a fraction we have to do the following steps:
1. Let 'x' be the repeating decimal:

2. Let 'n' be the number of decimals that repeat. In this case n = 1
3. Multiply both sides of point 1 by 10^n:

4. Substract (1) from (3) to eliminate the repeating part:

5. Solve for x:

6. Simplify: in this case, it is the simplest form for this fraction
Answer:
0.111... as a fraction is 1/9