28+45:5

To solve this expression, you should follow the order of operations, which is commonly known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

First, perform the division: 45 divided by 5 equals 9.

Then, add 28 and 9: 28 + 9 equals 37.

Therefore, the answer to 28 + 45 divided by 5 is 37.