Question

Show that (-2/5+4/9)+ (-3/4)= -2/5 + (4/9+ -3/4) 

give answer step by step ​

Answer 1

The associative property allows us to change groupings of addition and keep the same value.

(a+b)+c = a+(b+c)

Above statement is already proven so just write that in exam. You can solve it further if you want.