1)(-5/12-3/4):2целых 1/3+5 целых 1/3•0,75

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First, let's simplify the expression (-5/12 - 3/4):

-5/12 = -15/36
-3/4 = -27/36

Now, we can subtract these fractions:
-15/36 - 27/36 = -42/36 = -7/6

Next, let's add 2 1/3 + 5 1/3:

2 1/3 = 7/3
5 1/3 = 16/3

Now, we can add these fractions:
7/3 + 16/3 = 23/3

Lastly, let's multiply 23/3 by 0.75:

23/3 * 0.75 = 17.25

Therefore, the result of the expression (-5/12 - 3/4) divided by 2, added to 2 1/3 plus 5 1/3 times 0.75 is 17.25.