1\6х + 5\12х = 2.4\5
1/6x + 5/12x = 2.4/5; 7/12x = 2. 4/5; x = 2.4/5 ÷ 7/12 = 14/5 ÷ 12/7 = 24/5 = 4.4/5 Ответ: 4.4/5
7/12x=14/5 x=14*12/(5*7) x=4.8