Salut !
-2/9 = -8/36
-1/18 = -2/36
5/6 = 30/36
-1/2 = -18/36
-18/36 < -8/36 < -2/36 < 14/36 < 30/36
donc : -1/2 < -2/9 < -1/18 < 14/36 < 5/6
3/2 = 54/36
-7/6 = -42/36
4/9 = 16/36
-3/4 = -27/36
-42/36 < -27/36 < -13/36 < 16/36 < 54/36
donc : -7/6 < -3/4 < -13/36 < 4/9 < 3/2