To solve this expression, we first need to simplify each part:
4.5:1 = 4.5/1 = 4.55/8 = 5/8 = 0.625
Now we can substitute these values back into the expression:
(4.5 - 0.625 + 0.75) 2.3 - 3 2.3= (3.875 + 0.75) 2.3 - 6.9= 4.625 2.3 - 6.9= 10.6375 - 6.9= 3.7375
Therefore, the result of the expression is approximately 3.7375.
To solve this expression, we first need to simplify each part:
4.5:1 = 4.5/1 = 4.5
5/8 = 5/8 = 0.625
Now we can substitute these values back into the expression:
(4.5 - 0.625 + 0.75) 2.3 - 3 2.3
= (3.875 + 0.75) 2.3 - 6.9
= 4.625 2.3 - 6.9
= 10.6375 - 6.9
= 3.7375
Therefore, the result of the expression is approximately 3.7375.