Need help! i know this is easy but I don't get how to do it

Answer:
C
Step-by-step explanation:
-1.5 - - 0.6 = -2.1 / -1.5 + 0.6 = -2.1 (Cause 2 negative signs make a plus sign)
Have a great day! Can u mark me as brainlist? :)
Happy to help, and I get why you didn't get it
You could always ask g.o.o.g.l.e lol
-2.1 - 1 1/2 = 0.6
-2.1 - 0.6 = -1 1/2
G.o.o.g.l.e