Maths help?

Not to sound stupid but I was wondering if -½ is the same as -1/-2

And also, I was watching this indices revision video, and the person said 2x∧-3 = 2/x³ I would have thought 2x^-3 would be 1/2x^3 ?

This is the same for 3x²y∧-³ where they said it equals 3x²/y³

No, -½isn't the same as -1/-2 because -1/-2 equals a 0.5 because two negatives divided by each other equal a positive whereas -½ is equal to -0.5.

tbh I'm entirely sure but i think the negative sign applies to the whole answer of 1/2. So Although 1/2 = 0.5, the negative of 0.5 is obviously -0.5.

And the video seems to be wrong... I also agree 2x∧-3 is 1/2x^3.

Ah ok I see thank you
And this was the video I was watching if you skip to around 5.20 https://www.youtube.com/watch?v=mfrvdCngvq0