Answer:
Addition property
Explanation:
#We first solve to see which property will result to -5/6 + 2
-The last two parts of the expression have similar denominators, so we can add them like like like terms:
#Open brackets:

#Add for the terms with similar denominators:
![=-(5)/(6)+[(1)/(3)+(5)/(3)]\\\\=-(5)/(6)+(6)/(3)\\\\\#Simplify\\\\=-(5)/(6)+2](https://img.qammunity.org/2021/formulas/mathematics/college/jh9o6qq0hp08yvtnwnvdyo78yjec2kfl06.png)
Hence, the property used to simplify is addition