Question

which expression went to be easier to simplify if you used a communicative property to change the order of the numbers?

Answer 1

The communicative property is :

`a+b=b+a`

So, we will check the options to show which expression will be easier if we used communicative property

A.

`(1)/(7)+(-1)+(2)/(7)=(1)/(7)+(2)/(7)+(-1)=(3)/(7)-1=-(4)/(7)`

As we can see at option A it is easy to add the fractions first then subtract 1

The other options can be done without making communicative property

So, the answer is option A