Answer: 3 1/2

Step-by-step explanation:

(11/-18 + -1/36) - (-8+3/2)

11/-18 + -1/36 = 22+ (-1)/36 (multiply 18*2 to make the denominator equal)

                     = 21/36

                     = 7/12

(-8+3/2) = -5/2

7/12 - (-5/2) = 7/12 +5/2 (multiply 2*6 to make the denomiator equal)

                   = 7+30/12

                   = 37/12

                   = 3 1/2