Why does watching a video at 1.25 speed decrease the time by 20%? And 1.5 speed decreases it by 33%?

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I guess this reveals how fucking dumb I am. I can’t get the math to make sense in my head. If you watch at 1.25 speed, logically (or illogically I guess) I assume that this makes the video 1/4 shorter, but that isn’t correct.

In short, could someone reexplain how fractions and decimals work? Lol

Edit: thank you all, I understand now. You helped me reorient my thinking.

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29 Answers

Anonymous 0 Comments

1 is 2/3 of 1.5. Is 4/5’s of 1.25. Is 1/2 of 2. Is twice 0.5. Those fractions are 66%, 80%, 50%, and 200% respectively.

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