i need some help. can someone please help me!!!! ill give brainliest

Answer:
-1:1/2 or -1:3/6
Step-by-step explanation:
-2:2/3 + (-1:1/6) = -2:2/3 - 1:1/6
-2:2/3= -2:4/6
-2:4/6 - 1:1/6= 2-1=1 4-1=3 (Denominator stays the same)
Answer: -1:3/6 or -1:1/2
(Hope this helps!)