Помогите срочно пажалста
А=2 1/12= 25/12 b= - 10/9 0.8=8/10=4/5 0.3=3/10 0.6=6/10=3/5 1.2=1 2/10=12/10=6/5 (4/5 * 25/12 + 3/10*(-10/9)) (3/5 * (-10/9) -6/5 * 25/12)= 4/3 - 19/6= 8/6 - 19/6= -11/6