If josh had 2 apples and he ate 1 how many he have left?

Josh would have 1 apple left.

To determine how many apples Josh has left after eating one, follow these steps:

Step 1: Start with the initial amount of apples Josh had, which is 2.
Step 2: Subtract the number of apples Josh ate, which is 1.
Step 3: Calculate the result: 2 - 1 = 1.

So, Josh will have 1 apple left after eating one.