estimate 3 5/9 + 5 3/8

To estimate 3 5/9 + 5 3/8, we can round the mixed numbers to their nearest whole numbers and then add them together.

3 5/9 is approximately 3.56
5 3/8 is approximately 5.38

Therefore, 3 5/9 + 5 3/8 is approximately 3.56 + 5.38 = 8.94.