Answer:
8/9
Step-by-step explanation:
First we need to get both of the fractions to the same denominator.
1. 2/3 + 2/9 = 6/9 + 2/9
Next, we simply just add the fractions.
2. 6/9 + 2/9 = 8/9
Atmospheric pressure = 101,325 Newtons / m²
Weight per meter square = 101,325 Newtons
Mass per meter square = 101,325 / (9.81 x 1000)
Mass per meter square = 10.3 tonnes per m²
