а) (3/16 + 1/4) 8 = (7/16) 8 = 7/2 = 3.5б) (5/9 + 2/3) / 11 = (17/27) / 11 = 17/297в) (7/8 - 5/24) 48 = (21/24 - 5/24) 48 = (16/24) 48 = 32г) (9/13 - 9/39) / 9 = (27/39 - 9/39) / 9 = 18/39 / 9 = 2/13д) (4/15 - 1/5) 25 = (4/15 - 3/15) 25 = (1/15) 25 = 1.67е) (7/12 + 5/36) / 13 = (26/36) / 13 = 26/468 = 13/234
а) (3/16 + 1/4) 8 = (7/16) 8 = 7/2 = 3.5
б) (5/9 + 2/3) / 11 = (17/27) / 11 = 17/297
в) (7/8 - 5/24) 48 = (21/24 - 5/24) 48 = (16/24) 48 = 32
г) (9/13 - 9/39) / 9 = (27/39 - 9/39) / 9 = 18/39 / 9 = 2/13
д) (4/15 - 1/5) 25 = (4/15 - 3/15) 25 = (1/15) 25 = 1.67
е) (7/12 + 5/36) / 13 = (26/36) / 13 = 26/468 = 13/234