Eli5 – aspect ratios

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Ok, i sort of get it but i don’t. 1:1 is square 16:9 means it’s 1.77 x’s wider than it is tall. But what the hell does 9 actually represent considering it comes in many sizes from small to large yet same ratio, so what makes one side 9 or what ever? For instance why not just say 1.77:1?

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Anonymous 0 Comments

16/9 is 1.7777….going on forever. So 1.77:1 is less precise, and harder to write/pronounce than 16:9.

Mathematically, 16/9 and 1.77…/1 are the same. But one is easy to communicate and the other isn’t, which is a big deal when you want to use it in mass produced electronics.

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