Answer:

Step-by-step explanation:
From the information given, you know that your parents paid $13,600 in taxes from their income that was $56,000. The fraction would be:

To simplify this, first you can eliminate two zeros at the end of each number:

Now, you can divide both numbers by 8, which will result in:

According to this, the simplified fraction that shows how much your parents spent on their federal taxes is
.