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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Anonymous 0 Comments

.25 is 1/4. 1.00 is 4/4. 1.25 is 5/4ths. .25/1.25 = 1/5th, which is 20%. I believe the problem you’re having is you’re having trouble parsing the change of denominator of the fractions, in this case it changes from 1/4th, 25%, to 1/5th 20%.

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