1) 1 5/8 + 19/24 = 13/8 + 19/24 = 39/24 + 19/24 = 58/24 = 29/12.
29/12 - 1 1/12 = 29/12 -13/12 = 16/12 = 8/6 = 4/3.
4/3x = 1
x= 1 • 3/4
x= 3/4.
2) (2 23\28+1 20\28-1 26\28)•х=1
2 17\28х =1
х= 1: 2 17/28
х=1•28/73
х=28/73
1) 1 5/8 + 19/24 = 13/8 + 19/24 = 39/24 + 19/24 = 58/24 = 29/12.
29/12 - 1 1/12 = 29/12 -13/12 = 16/12 = 8/6 = 4/3.
4/3x = 1
x= 1 • 3/4
x= 3/4.
2) (2 23\28+1 20\28-1 26\28)•х=1
2 17\28х =1
х= 1: 2 17/28
х=1•28/73
х=28/73