Выполните действия: 1) (-5 3/4) * 8 + (-2 1/3) * (-1 3/14) - 1 37/48 * (-2 2/15); 2) (6,75 + (-4,5) * 1 2/3) * (-1 1/3)^3.

1) (-5 3/4) * 8 + (-2 1/3) * (-1 3/14) - 1 37/48 * (-2 2/15)=n
(-23/4) * 8 + (-7/3) * (-17/14) - 85/48 * (-32/15)=-23/1 * 2 + (-1/3) * (-17/2) - 19/3 * (-2/3)=n
-46 + 17/6 + 38/9= -46 + 2 5/6 + 4 2/9=-40+(15+4)/18=-40+19/18=-40+1 1/18=n
-38 17/18;n
2) (6,75 + (-4,5) * 1 2/3) * (-1 1/3)^3=(6 3/4 + (-4 1/2) * 1 2/3) * (-1 1/3)^3=n
(27/4 - 9/2 * 5/3) * (-4/3)^3=(27/4 - 3/2 * 5/1) * (-4/3)^3=(6 3/4 - 7 1/2) * (-64/27)=n
-3/4 * (-64/27)=-1/1 * (-16/9)=16/9=1 7/9.