(1/3+0,75):(2/3+5/12) вычислите
(1/3 + 3/4) : (8/12 + 5/12) = ((4 + 3)/12) : 13/12 = 7/12 : 13/12 = 7/12 * 12/13 = 7/13 Otvet 7/13