Final answer:
0.12 and 1.2 are compared by their place values, revealing that 1.2 is greater than 0.12.
Step-by-step explanation:
When comparing two decimal values to determine which is greater, you can look at the digits from left to right, starting with the highest place value.
For the numbers 0.12 and 1.2, we can see that 1.2 has a '1' in the ones place, while 0.12 only has '0' in the ones place and a '1' in the tenths place.
Therefore, by comparing place values, 1.2 is greater than 0.12.
As another way to visualize it, think about money: $1.20 is clearly more than $0.12.