The communicative property is :
[tex]a+b=b+a[/tex]
So, we will check the options to show which expression will be easier if we used communicative property
A.
[tex]\frac{1}{7}+(-1)+\frac{2}{7}=\frac{1}{7}+\frac{2}{7}+(-1)=\frac{3}{7}-1=-\frac{4}{7}[/tex]
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
