solve for F in the formula i/p + i/f = i/c show work please?

1 Answer

  • 8 years ago
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    i/p + i/f = i/c

    By Least Common Factor,


    By Crossmultiplying,


    Rearranging the above equation,


    Taking i and f common from LHS of above equation,

    i*f*(c-p) = i*(-pc)

    Eliminating i on both sides,

    f*(c-p) = -pc

    Hence, f = -pc/(c-p)

    or f = pc/(p-c)

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