Seven ninths, or 7/9, can be converted into a decimal by performing the division of the numerator by the denominator.
When you divide 7 by 9, you get approximately 0.777…, where the 7 repeats indefinitely. This can also be represented as 0.7̅ to indicate that the 7 continues on infinitely.
In summary, seven ninths as a decimal is 0.777… or simply 0.7̅.