Question

( x+y)+z= x+(y+z) x=1/2;y=2/3; z=1/5

Answer 1

can u pls tell us what to find?

Answer 2

(1/2+2/3)+1/5.=1/2+(2/3+1/5)

7/6+1/5.= 1/2 + 13/15

41/30 =41/30

LHS =RHS

Verify