Question 30999
{{{ (1/a)+(1/b)=(1/c) }}}
{{{ (1/a)=(1/c)-(1/b) }}}
{{{ (1/a)=(1/c)(b/b)-(1/b)(c/c) }}}
{{{ (1/a)=(b/bc)-(c/bc) }}}
{{{ (1/a)=(b-c)/(bc) }}}
{{{ a=(bc)/(b-c) }}}


jon.