SOLUTION: Solve for s 1/r=1/s+1/t

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Question 233235: Solve for s
1/r=1/s+1/t
Found 2 solutions by Alan3354, Stitch:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
1/r=1/s+1/t
1/s = 1/r - 1/t = (t-r)/rt
s = rt/(t-r)

Answer by Stitch(470) About Me  (Show Source):
You can put this solution on YOUR website!
Givn: %281%2Fr%29=+%281%2Fs%29+%2B+%281%2Ft%29
The first thing I would do is get the part with s in it by itself.
This can be done by subtracting 1/t from both sides.
%281%2Fr%29+-+%281%2Ft%29+=+1%2Fs
Now multiply both sides by s
s%2A%28%281%2Fr%29-%281%2Ft%29%29+=+1
Then divide both sides by [(1/r)-(1/t)]
s+=+1%2F%28%281%2Fr%29-%281%2Ft%29%29