Question

how do you solve. these of fractions...

5/n-3 + n/n+3

Answer 1

Combine them and their denominator
(5+n)/(n-3)
Done lol

Answer 2

really lol

Answer 3

lol....no

Answer 4

It's not that simple.

Answer 5

yea i seen it was wrong lol i think i may have got it tho. just a lot of steps but after working about 5 i think i get it

Answer 6

He doesn't even explain what happened to the n + 3

Answer 7

yea i know

Answer 8

\[\frac{5}{n - 3} + \frac{3}{n + 3}\]

Answer 9

To add fractions like these, let's go back to actual numbers. Suppose you had to add

\[\frac{2}{3} + \frac{4}{5}\]

What would you do?

Answer 10

find the lcd

Answer 11

Oh sorry i didn't see it was n-3 and n+3 i thought they were both n-3 sorry

Answer 12

This chapter was annoying man are you on flvs?

Answer 13

You would realize that you need to multiply the first fraction by 5/5 and the second fraction by 3/3

\[\frac{2}{3} \times \frac{5}{5} + \frac{4}{5} \times \frac{3}{3}\]

We do this because in order to add fractions we need both denominators to be the same.

Answer 14

\[[(n+3)/(n+3)]5/(n-3) + n/(n+3)[(n-3)/(n-3)]\]

Answer 15

Upon doing so we get

\[\frac{10}{15} + \frac{12}{15}\]

Which equals


\[\frac{22}{15}\]

Answer 16

The same process can be applied to the fractions you have to add.

Answer 17

\[\frac{ 5n+15+n^2-3n }{ (n+3)(n-3) }\]

Answer 18

\[\frac{5}{n - 3} \times \frac{n + 3}{n + 3} + \frac{n}{n + 3} \times \frac{n - 3}{n - 3}\]

Answer 19

\[\frac{ n^2+2n+15 }{ (n+3)(n-3) }\]

Answer 20

\[\frac{ (n+5)(n-3) }{ (n+3)(n-3) }\]

Answer 21

cancel out the n-3's

Answer 22

\[\frac{ n+5 }{ n+3 }\]

Answer 23

that's the answer

Answer 24

Get ITTTT ?

Answer 25

Only thing is, it's still an improper fraction

Answer 26

I know but in the textbook, anywhere that will be the answer

Answer 27

#adding and subtracting rational expressions chapter 7 section 3 XDD

Answer 28

I was going to finish by saying that

\[\frac{22}{15}\] is an improper fraction. And you express the improper fraction in simpliest from as a mixed fraction:

\[\frac{22}{15} = \frac{15 + 7}{15} = \frac{15}{15} + \frac{7}{15} = 1 \frac{7}{15}\]

Answer 29

\[\frac{n + 5}{n + 3}\] is also an improper fraction. To express it as a mixed fraction, do the following:

\[\frac{n + 5}{n + 3} = \frac{n + 3 + 2}{n + 3} = \frac{n + 3}{n + 3} + \frac{2}{n + 3} = 1 + \frac{2}{n + 3}\]