1)-4,2-3-3-4,2=-1,2 2)-90:15=-6
3)(7/12)-(-5/12) 7/12+5/12 12/12-12:12=1 4)35+(-8)=35-8= 27
5) (-5/9)* (3,5/5)=-17,5/45 - 3,5/9
не уверен
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1)-4,2-3-3-4,2=-1,2 2)-90:15=-6
3)(7/12)-(-5/12) 7/12+5/12 12/12-12:12=1 4)35+(-8)=35-8= 27
5) (-5/9)* (3,5/5)=-17,5/45 - 3,5/9
не уверен