Помогите решить 6 класс (1 2/3+2 4/9):(2 26/27-2 2/9)=
1) 2/3 + 2 4/9 = 5/3 + 22/9 = (5 × 3 + 22 × 1)/9 = 15/9 + 22/9 = 37/9 = 4 1/9 2)2 26/27 - 2 2/9 = 80/27 - 20/9 = (80 × 1 - 20 × 3)/27 = 80/27 - 60/27 = 20/27 3)4 1/9 ÷ 20/27 = 37/9 ÷ 20/27 = 37/9 × 27/20 = 111/20 = 5 11/20 ОТВЕТ : 5 11/20