Conversion of the given decimal to fraction gives: 3¹/₉
How to interpret a decimal with a bar above it?
A horizontal line written over a repeating number after a decimal point is called a bar. That line denotes bar notation.
A bar over a number means that the number is being repeated indefinitely after a decimal point. That is why there is a bar over that number.
Thus, the given number can be expanded using the concept above to get:
3.11111111......
As a fraction, we have:
3¹/₉