Question

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

Answer 1

what is the lcd of \(\frac{4}{1}~and~\frac{1}{7}\)?

Answer 2

I have no idea

Answer 3

ok what is a lcd? do you have any examples where you know what the lcd is?

Answer 4

LCD means lowest common denominator

Answer 5

good now do you know any for let's say ⅔ and 3/2 ?

Answer 6

no..

Answer 7

do you, have any where you know the lcd?

Answer 8

I don't.

Answer 9

ok so can you read this please : http://www.purplemath.com/modules/rtnladd.htm

Answer 10

I figured out the answer, it's 7.

Answer 11

it is