Assuming that two nineths is meant to be two ninths, the answer is 0.22... recurring.
You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.
7/9
2/9+1/9=
1.05 to the ninth power = 1.059 = 1.55133
2 to the ninth power equals 512512
10,077,696
134,217,728
.11
11.11%
262144
One piece of anything that has been divided into nine equal pieces is one ninth of the original. It is a little more that 11 percent of the whole, so one ninth of a dollar is about 11 cents.
189 = 198,359,290,368
-1,000,000,000