Question

Помогите срочно пажалста

Answer 1

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