а) x = (12/13) (15/6) = 30/13б) x = (7/5) (28/13) = 196/65в) x = (24/65) / (12/13) = 24/65 13/12 = 312/780 = 39/97г) x = (5/22) / (7/11) = 5/22 11/7 = 55/154
а) x = (12/13) (15/6) = 30/13
б) x = (7/5) (28/13) = 196/65
в) x = (24/65) / (12/13) = 24/65 13/12 = 312/780 = 39/97
г) x = (5/22) / (7/11) = 5/22 11/7 = 55/154