Simplify each of the following expressions further and identify the number property(ies) used in each.
1. 2 x (15+8)= (2 x 15)+ (2 x 8)=
2. 5/2 x (3/4 x 2/5)= (5/2 x 2/5)x 3/4=
Expression are simplified and their properties are identified.