Find the LCD that would eliminate the fractions in this equation. 4n-1/7=5/7

Question

anonymous · Answer

Multiply the whole fraction by seven. You get$$28n-1=5$$ Gathering the terms,$$28n=6$$ Dividing by 28, $$n=3/14$$
I'm not sure what you mean by LCD, but you could, alternatively, 
Add 1/7 to both sides,$$4n=6/7$$ Multiply the left-hand side by 7/7 (you can do that because it's equal to one, so the equality is preserved),$$28n/7=6/7$$ Multiply by seven,$$28n=6$$ And divide by 28, $$n=6/28$$

anonymous · Answer

no ur wrong

anonymous · Answer

Indeed?

anonymous · Answer

I'm sorry, I should have put 3/14 at the end of the last thing, but really, I hope you can simplify fractions on *that* level on your own.

anonymous · Answer

i cant im 5

anonymous · Answer

Right. Well, if you can't figure out that 6/28 = 3/14, maybe these are a bit too high level for you.