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-12,5+ [13/3 *(-3.9)]=
-12.5+ (-16,9)=
-29.4
2.
[0,8-(1,2*5/12-0,8)]:(-⅛)=
[0,8- (0,5-0.8)]:(-⅛)=
(0.8+0,3):(-⅛)=
11/10: (-⅛)=
11/10*(-8)=
-8.8
4 1/3 * (-3,9)
13/3 *(-39/10)= 169/10=16,9
-12,5-16,9= 29,4 :)
2. [0,8-(1,2*5/12-0,8)]:(-⅛)= [0,8-(6:12 -0,8)] :(- ⅛)=[0,8+0,3]*8
=1,1*(-8)= -8,8