6.25: 5/3 - 2.5: 1.5 + 7.5 - 8.33

To solve this expression, we first need to convert the mixed fractions to improper fractions:

5/3 = 1.67
1.5 = 1.5
7.5 = 7.5
8.33 = 8.33

Now we can perform the operations:

6.25 - 1.67 - 2.5 + 1.5 + 7.5 - 8.33
= 6.25 - 1.67 - 2.5 + 1.5 + 7.5 - 8.33
= 6.25 - 1.67 - 2.5 + 1.5 + 7.5 - 8.33
= 6.25 - 1.67 - 2.5 + 1.5 + 7.5 - 8.33
= (6.25 - 1.67) - 2.5 + 1.5 + 7.5 - 8.33
= 4.58 - 2.5 + 1.5 + 7.5 - 8.33
= 2.08 + 1.5 + 7.5 - 8.33
= 3.58 + 7.5 - 8.33
= 11.08 - 8.33
= 2.75

Therefore, the result of the expression 6.25: 5/3 - 2.5: 1.5 + 7 - 8.33 is 2.75.