5) = 3 1/12
7) = 5 1/2
5)17/12 ; 7)5,5
Пошаговое объяснение:
5) 3 1/8 : 15/16 - 1/4 = 25/8 : 15/16 - 1/4 = 25/8 * 16/15 - 1/4 = 5/8 * 16/3 - 1/4 = 5/2 * 2/3 - 1/4 =5/3 -1/4 = 20/12 - 3/12 = 17/12
7) ( 11 5/8 + 7 1/6) : 3 5/12 = ( 11 15/24 + 7 4/24) : 3 10/24 = 18 19/24 : 3 10/24 =
451/24 : 82/24 = 451/24 *24/82 = 451/82 = 11/2 =5,5
5) = 3 1/12
7) = 5 1/2
5)17/12 ; 7)5,5
Пошаговое объяснение:
5) 3 1/8 : 15/16 - 1/4 = 25/8 : 15/16 - 1/4 = 25/8 * 16/15 - 1/4 = 5/8 * 16/3 - 1/4 = 5/2 * 2/3 - 1/4 =5/3 -1/4 = 20/12 - 3/12 = 17/12
7) ( 11 5/8 + 7 1/6) : 3 5/12 = ( 11 15/24 + 7 4/24) : 3 10/24 = 18 19/24 : 3 10/24 =
451/24 : 82/24 = 451/24 *24/82 = 451/82 = 11/2 =5,5