0.2. выполните действия: 3) (6 3/8-2 3/4)*(-4)+7/18*9;

3)  -11.

4)  6,5.

Объяснение:

3)   (6 3/8-2 3/4)*(-4)+7/18*9 = -11.

По действиям:

1)  6 3/8-2 3/4 = 6 3/8 - 2 6/8 = 4 (3-6)/8 = 3 (11-6)/8=29/8 = 3 5/8;

2)  3 5/8 * (-4) = 29/8 *(-4) = -29/2;

3)  7/18 * 9= 7/2;

4)  -29/2 + 7/2=-22/2= -11.

4)  9 1/6 : (4 1/3 -8) +24 * 3/8= 6.5.

1)   4 1/3 - 8 = -(8 - 4 1/3) = - (7 3/3 - 4 1/3)= -3 2/3;

2)  9 1/6 : (-3 2/3) = - 55/6 : 11/3 = -55/6 * 3/11 = -5/2 = -2 1/2;

3)  24 * 3/8 = 9;

4)   -2 1/2 +9 = 9 - 2 1/2 = 8 2/2 - 2 1/2 = 6 1/2 = 6.5.