# in need of assistance HND maths

• June 3rd 2012, 12:28 PM
gordonmckee
in need of assistance HND maths
Hi Need some help re-arranging a formula...just started back at college after a long time out from school and nneed all the help i can get thanks.

f = uv / u+v

make v the subject

$f = \frac{uv}{u+v}$
$f(u+v) = uv$
$fu+fv = uv$
$fu = uv -fv$
$fu = v(u -f)$
$v=\frac{(u -f)}{fu}$