(5/6-1/4x2/3)÷1/6=(5/6-1/6)x6=2/3x6=4
(5/6-1/4X2/3)÷1/6=(5/6一1/6)X6=4/6X6=4
(5/6-1/4x2/3)÷1/6=(5/6-1/6)x6=4/6ⅹ6=4