Compare Decimals: Find the Missing Sign Between 0.45 and 0.450

Let's compare the two decimal numbers $0.45$ and $0.450$.

1. Convert $0.45$ to the same decimal places as $0.450$:

$0.45 = 0.450$

2. Now compare the expanded forms. Since both are numerically equal, we have:

$0.450 = 0.450$

Therefore, the missing sign is $=$.