Express each of the following as a rational number of the form 
:
(i) 
(ii) 
(iii) 
(iv) 
(v) 
(i) 
+ (
) + (
) + 
- 3
= 
- 
- 
+ 
- 3
= 
– 
– 
+ 
– 
= 
= 
= 
(ii) 
+ 1 + (
) + (
) + 
= 
+
–
+ 
– 
= 
+
– 
+ 
– 
= 
=
(iii) 
+ (
) + (
) + 6 + 
= 
+
- 
+ 6 - 
= 
+
– 
+ 
– 
= 
= 
(iv) 
+ 0 + (
) + 
+ 
= 
+0 -
+ 
+ 
= 
– 
+
+ 
= 
= 
(v) 
+ (
) + (
) + 
+ 2
= 
+
- 
-
+ 2
= 
+
– 
-
+
= 
= 
= 
2