Odds of hitting flush on turn/river

[masland]

Ok, I'm rusty on the math so I am looking for an example of how you do the following combination:

I have 4 of a flush on the flop. What are my odds of completing the flush?

9 possible cards make flush
57 cards left in deck
2 cards to be drawn


Can someone show me how I setup this combination? I'm trying to calculate a lot of different odds so a working example of this would do me wonders! thanks guys!

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[emp1346]

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57 cards left in deck

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You mean 47?

And there are many posts that answer this kind of question, such as this one...