Question

решите уравнение (2 8/9 ÷ 1 4/9 - 2/3)×х=1

Answer 1

1) 26/9 : 13/9 = 26/9 * 9/13 = 2
2) 2 - 2/3 = 6/3 - 2/3 = 4/3
уравнение примет вид:
4/3 * x = 1
x = 1: 4/3
x = 1*3/4=3/4
Ответ: х = 3/4

Answer 2

(2 8/9 ÷ 1 4/9 - 2/3)×х=1

(26/9*9/13-2/3)*x=1

(1 3/3-2/3)*x=1

1 1/3x=1

X=1/1*3/4

X=3/4