Solve for y in the equation?

Question

I honestly forgot how to solve for Y in this equation, any help?

1/Y = 1/G + 1/F

Y = ????

Answer 1

1/Y = 1/G +1/F

1= Y/G + Y/F

1= Y(1/G + 1/F)

Y = 1/ (1/G +1/F)

Answer 2

Multiple both sides by Y

Y= (1/G)Y +(1/F)Y

Answer 3

1/Y=1/G+1/F

First step is to get rid all of the fractions by multiplying by the lowest common denominator YGF

GF=YF+YG

Factor out the Y

GF= Y (F+G)

Divide by F + G

GF/F +G = Y

Answer 4

1/Y = 1/G + 1/F

1/Y = F/GF + G/GF

1/Y = (F + G)/GF

therefore Y = GF/(F+G)

Answer 5

1/y=f/gf+g/gf

y=gf+fg