Decimal numbers in Russian speech

How would you say the following numbers in Russian speech?

7.3
8.85
0.659
3.0563

I speak Russian quite well, but I am a bit lost. I think I would say for example, "sem' i tri" "vosem' i vosem'desyat' pyat'" - but I don't know if this is strictly correct. There is also the possibility of using "sem' i tri desyatih" or "vosem' vosem' desyat' sotyh" for example... I hear this on sports telecasts, but I don't know if people actually say this in regular speech.

And for the last two I have no idea..

Can you help me?

In everyday speech I'd definetely say just:
Семь и три
Восемь восимьсь пять (yes, восимьсь means восемьдесят :D )
Ноль шестьсот пятьдесят девять (пьсят девять, I'd pronounce)
Три (и) ноль пять шестьдесят три (I don't know why so; of course you can also say "и ноль пятьсот шестьдесят три" - I think it's even better - or maybe something else)

They all are correct in everyday speech and maybe in some other cases. Although the "formal" way to say it is:
Семь целых три десятых (or Семь и три десятых)
Восемь целых (и) восемьдесят пять сотых
Ноль целых шестьсот пятьдесят девять тысячных (I think the и is no needed here)
Три целых (и) .... hm... here, I don't know! :lol:

P.S. maybe "и пятьсот шестьдесят три десятитысячных"?.. But it sounds really weird! :)

Quote:

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Originally Posted by Оля

P.S. maybe "и пятьсот шестьдесят три десятитысячных"?.. But it sounds really weird! :)

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Ну почему странно? Вполне нормально. :)