Which symbol should replace the box to correctly compare the numbers?

Comparing Negative Numbers
Sometimes we get confused when comparing negative numbers even if we get the rule "the more negative, the less the number".
This means that -7 is less than -4 and -1 is greater than -3.
We have the numbers:
-3.1 ____ -2.4
The possible symbols to fill up the space are:
< less than
> greater than
= equal to
Since -3.1 is more negative than -2.4, then it's less than -2.4, thus the correct expression is:
-3.1 < -2.4
If still in doubt, just add a positive number big enough like 5:
-3.1 + 5 ____ -2.4 + 5
Operating:
1.9 ___ 2.6
Now it could be more evident the left number is smaller than the right number