Simplification: (1) 3-18 (2) - 24-36 (3) - 24-6 (4) - 16-48

Simplification: (1) 3-18 (2) - 24-36 (3) - 24-6 (4) - 16-48

(1) - 18 of 3 = - 18 / 3 = - 6
(2) - 36 of 24 = 36 / 24 = 3 / 2
(3) - 6 / 24 = 6 / - 24 = - 1 / 4
(4) - 16 of - 48 = 48 / 16 = 3