Answer: Greater than sign
-4.2 + 1.5 > -5.4 + 2.1
=================================================
Work Shown:
-4.2 + 1.5 = -2.7
-5.4 + 2.1 = -3.3
We see that -2.7 > -3.3, since -2.7 is to the right of -3.3 on the number line. Stuff on the right is larger than stuff on the left.
Therefore, -4.2 + 1.5 > -5.4 + 2.1
-------------
In other words,
-4.2 + 1.5 > -5.4 + 2.1
-2.7 > -3.3
