433 159 /851-479 987/943+468 000/2340+331 331/331

To solve this expression, we need to follow the order of operations, which is commonly known as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right).

Let's break it down step by step:

1. Starting with the division operation: 433159 ÷ 851 = 509

2. Now, let's move on to the subtraction operation: 509 - 479 = 30

3. Next, the division operation: 987 ÷ 943 = 1

4. Moving on to addition: 468000 + 2340 = 470340

5. Finally, the addition operation: 331331 + 331 = 331662

Therefore, the simplified expression is: 331662.