First, let's simplify the mixed numbers:
5 3/4 = 23/49 5/8 = 77/8
So the expression becomes:
(23/4 - 77/8) - (-0.345 - 0.03)
Now, let's find common denominators:
(46/8 - 77/8) - (-0.345 - 0.03)(-31/8) - (-0.375)
Now, simplify further:
-31/8 + 0.375-31/8 + 3/8=-28/8=-7/2=-3.5
Therefore, the final answer is -3.5.
First, let's simplify the mixed numbers:
5 3/4 = 23/4
9 5/8 = 77/8
So the expression becomes:
(23/4 - 77/8) - (-0.345 - 0.03)
Now, let's find common denominators:
(46/8 - 77/8) - (-0.345 - 0.03)
(-31/8) - (-0.375)
Now, simplify further:
-31/8 + 0.375
-31/8 + 3/8
=-28/8
=-7/2
=-3.5
Therefore, the final answer is -3.5.