Sum of (-12) + (12) + (-6) + (-5) + (-7) + (-10) is _____.
-28
+28
0
-10
(−12)+(12)+(−6)+(−5)+(−7)+(−10) =(−12)+(12)+(−28) =0−28 =−28
7/12*28/13-7/10*5/13+2/13