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Posted by **Serena** on Monday, April 2, 2012 at 11:58am.

(1/a) - (1/b) = c

would you use the LCD???

- MathLog#4 -
**Bosnian**, Monday, April 2, 2012 at 12:14pm1 / a - 1 / b = c

1 / a = c - 1 / b

1 / a = c b / b - 1 / b

1 / a = ( c b - 1 ) / b

Reciprocal :

a = b / ( c b - 1 )

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