In American English a period ( . ) is used as a decimal separator, but there are other places in the world where a comma ( , ) is used.

I would read a quantity of 7.5 as "seven point five" written as-is. But if you use a pause and not a point how do you read the number aloud?

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[–] 5 points 7 months ago*

7,5 is read in Finnish as "seitsemän pilkku viisi". 7.5 would be read as "seitsemän piste viisi".

The rule is that if it's in decimal system, you use comma; if in any other system, you use dot. And you read what you write.

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