Question

Algebra 2 helpp please Fan & medal (:
(pic posted)

Answer 1

What's preventing you from doing that? We're just adding fractions.

\(\dfrac{u}{u-3} + \dfrac{1}{u}\)

Find a common denominator and add the two fractions. We can worry about the denominator, later.

Answer 2

how do i find a common denominator

Answer 3

Can you add these? \(\dfrac{2}{3} + \dfrac{4}{5}\)

Answer 4

yeahh. um
1 7/15

Answer 5

How did you decide on 15 for the denominator?

Answer 6

its common in both
bbut theres letters
so idk how to do that

Answer 7

It is not different AT ALL. Who told you that it was?

\(\dfrac{2}{3} + \dfrac{4}{5} = \dfrac{2}{3}\cdot\dfrac{5}{5} + \dfrac{4}{5}\cdot\dfrac{3}{3} = \dfrac{10}{15} + \dfrac{12}{15} = \dfrac{22}{15}\)

\(\dfrac{u}{u-3} + \dfrac{1}{u} = \dfrac{u}{u-3}\cdot\dfrac{u}{u} + \dfrac{1}{u}\dfrac{u-3}{u-3} = \dfrac{u^{2}}{u(u-3)} + \dfrac{u-3}{u(u-3)} = \dfrac{u^{2} + u - 3}{u(u-3)}\)

It is exactly the same process. They are letters, I'll give you that, but they represent numbers. Just treat them like numbers.

Answer 8

thanksss

Answer 9

Well, now you have to go get the denominator. Just reciprocal and multiply. You'll have it in no time.