What is 4 1 .3 cups minus 2.3 cups?

You're asking to subtract 2.3 cups from 41.3 cups. Here's how to solve it:

* Line up the numbers:

```

41.3

- 2.3

------

```

* Subtract the decimal parts: 3 - 3 = 0

* Subtract the whole numbers: 41 - 2 = 39

* Combine the results: 39.0

Therefore, 41.3 cups minus 2.3 cups equals 39 cups.