fraction help

[flew62999]

1 1
------- + -------
3 + c 3 - c

where do I begin?

 

[stapel]

I will guess that you mean the following:

. . . . .1/(3 + c) + 1/(3 - c)

But what are you supposed to be doing with this?

Eliz.

 

[flew62999]

add them.

so would i multiply each by -1 to change the denominator to c + 3 and
c - 3

 

[Denis]

1 1
------- + -------
3 + c 3 - c
where do I begin?

looks like 1 / (3 +c) + 1 / (3 - c)

multiply by lcd, which is (3 + c)(3 - c):
that's where you begin.

 

[stapel]

Multiplying each of them by -1/-1 would give you:

. . . . .-1/(-c - 3) - 1/(c - 3)

Is that what you want? Or might it be better to muliply only the second fraction by -1/-1?

Either way, you will need to convert the fractions to a common denominator before combining them.

Eliz.