Б) -28,6:57,2-26,8:(1.34)*(-3)=(-1/2)-20*(-3)=(-1/2)-(-60)=59 1/2=59 1/2=59,5
В)(-2 1/4)*((-8 2/9)-(4,5):9/14)-3 3/4=(-2 1/4)*((-8 2/9)- (-7))-3 3/4=(-2 1/4)*(-1 2/9)-3 3/4= 2 3/4-3 3/4= -1
Не благодарите))
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Б) -28,6:57,2-26,8:(1.34)*(-3)=(-1/2)-20*(-3)=(-1/2)-(-60)=59 1/2=59 1/2=59,5
В)(-2 1/4)*((-8 2/9)-(4,5):9/14)-3 3/4=(-2 1/4)*((-8 2/9)- (-7))-3 3/4=(-2 1/4)*(-1 2/9)-3 3/4= 2 3/4-3 3/4= -1
Не благодарите))