Question

Мерзляк №1041 Помогите! ​

Answer 1

Ответ:

1) (-5 3/4) * 8 + (-2 1/3) * (-1 3/14) - 1 37/48 * (-2 2/15)=(-23/4) * 8 + (-7/3) * (-17/14) - 85/48 * (-32/15)=

-46 + 17/6 + 38/9= -46 + 2 5/6 + 4 2/9=-40+(15+4)/18=-40+19/18=-40+1 1/18=-38 17/18;

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=(27/4 - 3/2 * 5/1) * (-4/3)^3=(6 3/4 - 7 1/2) * (-64/27)=-1/1 * (-16/9)=16/9=1 7/9.