а)х\24=3\28.
28х = 72
х = 72/28 = 18/7
б)х:13=24:39.
х/13 = 8/13
х = 8
х=24*3/28=72/28=2,57
х=13*24/39=8
а)х\24=3\28.
28х = 72
х = 72/28 = 18/7
б)х:13=24:39.
х/13 = 8/13
х = 8
х=24*3/28=72/28=2,57
х=13*24/39=8