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S.E.A. 0021
S.E.A. 0021 asked in Science & MathematicsMathematics · 1 decade ago

1/a+1/b=1/m solve for b?

i need to get b by it self please help asap

2 Answers

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  • Stan
    Lv 5
    1 decade ago
    Favorite Answer

    If you multiply both sides by abm, you will get:

    (abm/a) + (abm/b) = (abm/m)

    or

    bm + am = ab

    or

    am = ab - bm

    or

    am = b(a - m)

    or

    (am) / (a - m) = b

  • Zeta1
    Lv 6
    1 decade ago

    1/a+1/b=1/m

    1/b = 1/m - 1/a

    1/b = a/ma - m/ma = ( a - m ) / ma

    now invert both sides:

    ma / (a -m) = b

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