Someone please help!

[Gabriella123]

Can anyone please help me i have no idea how to solve thias equation? It's-
1/2+1/4=1/f (i have to solve for f) help please

 

[kaebun]

1/2+1/4=1/f
2/4+1/4=1/f
(3/4=1/f)f
3/4f=1
can you get it from there?

 

[Gabriella123]

does f =3\4?

 

[Gabriella123]

does it =1/12

 

[kaebun]

actualy f=4/3
3/4f=1
so then you divide by 3/4 which is the same as multiplying by the reciprical... 4/3
so f=4/3

 

[Gabriella123]

thank you very much!

 

[kaebun]

your welcome