2+(-7/9)

To add positive 2 and negative 7/9, you can convert both numbers to a common denominator and then add them together. The common denominator is 9, so we need to convert the 2 to a fraction with a denominator of 9:

2 = (2/1) * (9/9) = 18/9

Now we can add the two fractions:

18/9 + (-7/9)

To add these fractions, we simply add the numerators while keeping the denominator the same:

(18 - 7) / 9 = 11/9

So, 2 + (-7/9) is equal to 11/9.