а) 8/11 11/13 = 88/143б) 7/10 25/27 = 175/270в) 5/7 : 1/7 = 5/1 = 5г) 16/25 : 3/5 = 16/25 * 5/3 = 80/75 = 16/15
а) 8/11 11/13 = 88/143
б) 7/10 25/27 = 175/270
в) 5/7 : 1/7 = 5/1 = 5
г) 16/25 : 3/5 = 16/25 * 5/3 = 80/75 = 16/15