Question

SOLVE FAST AND ONLY SOLVE IF YOU ACTUALLY KNOW THE ANSWER!!!

Answer 1

Answer:

1/M = 1/N +1/P

1/M - 1/N = 1/P

N-M / NM = 1/P

P = NM/(N-M)

Answer 2

$\rm \dfrac{1}{M} = \dfrac{1}{N} + \dfrac{1}{P}$

$\rm \dfrac{1}{M} -\dfrac{1}{N} = \dfrac{1}{P}$

$\rm \dfrac{N-M}{MN} = \dfrac{1}{P}$

$\rm \dfrac{MN}{N-M} = P$

$\boxed{ \bf P=\dfrac{MN}{N-M}}$