Решить дроби 3/4х-1,1/2+1/5х=1,2/3
3/4x - 1 1/2 + 1/5x = 1 2/3 3/4x + 1/5x = 1 2/3 + 1 1/2 15/20x + 4/20x = 1 4/6 + 1 3/6 19/20x = 2 7/6 19/20x = 19/6 x = 19/6 : 19/20 x = 19/6 * 20/19 x = 1/3 * 10/1 x = 10/3 x = 3 1/3