5) 1,1 7) 0,583
6) 0,2083 8) 0,25
Пошаговое объяснение:
5) 12/27 + 14/21 = 4/9 + 2/3 = (4+6)/9 = 10/9 = 1,1
6) 14/24 - 15/40 = 14/24 - 3/8 = (14-9) /24 = 5/24 = 0,2083
7) 12/18 - 5/60 = 2/3 - 1/12 = (8-1)/12 = 7/12 = 0,583
8) 4/24 + 3/36 = 2/12 + 1/12 = (2+1)/12 = 3/12 = 1/4 = 0,25
5) 1,1 7) 0,583
6) 0,2083 8) 0,25
Пошаговое объяснение:
5) 12/27 + 14/21 = 4/9 + 2/3 = (4+6)/9 = 10/9 = 1,1
6) 14/24 - 15/40 = 14/24 - 3/8 = (14-9) /24 = 5/24 = 0,2083
7) 12/18 - 5/60 = 2/3 - 1/12 = (8-1)/12 = 7/12 = 0,583
8) 4/24 + 3/36 = 2/12 + 1/12 = (2+1)/12 = 3/12 = 1/4 = 0,25