а) (3/8)•(9/11) = 27/88
б) (22/35)•(21/44) = 462/770 = 231/385
в) (5.3/5)•(1.4/21) = 1.06/105 = 53/525
г) (9.3/7)•(1.3/11) = 12.09/77 = 33/209
д) (1.1/15)•(5/16) = 5.5/240 = 11/480
е) (7/11)•(2.5/14) = 17.5/154 = 35/308
а) (3/8)•(9/11) = 27/88
б) (22/35)•(21/44) = 462/770 = 231/385
в) (5.3/5)•(1.4/21) = 1.06/105 = 53/525
г) (9.3/7)•(1.3/11) = 12.09/77 = 33/209
д) (1.1/15)•(5/16) = 5.5/240 = 11/480
е) (7/11)•(2.5/14) = 17.5/154 = 35/308