45а + 76 :45

To solve the expression 45a + 76 ÷ 45, we need to follow the order of operations (also known as PEMDAS or BIDMAS).

Firstly, let's calculate the division:

76 ÷ 45 = 1.6888888888888888

Now, we can substitute this value back into the expression:

45a + 1.6888888888888888

Since there is no further mathematical operation or value given for 'a', we cannot simplify this expression any further.