Compare Decimals: Finding the Correct Symbol Between 103.22 and 103.221

Let's first compare the numbers in the following way:

We'll add 0 to the number 103.22 as follows:

$103.220\text{?}103.221$

Note that, before the decimal point, both numbers start with 103.

After the decimal point, there are the numbers 2 and 2.

The different numbers are the last ones: 0 versus 1.

Since 1 is greater than 0, the appropriate sign is:

103.220 < 103.221