Question

I WILL AWARD A MEDAL!!!!!!!!!!!!!!
PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Using complete sentences, explain why it is necessary to have common denominators when adding or subtracting rational expressions. (2 points)


Using complete sentences, explain why it is necessary to have a strong foundation in factoring when working with rational expressions. (2 points)

Answer 1

@marissalovescats @Hero @Loser66

Answer 2

hey, I don't know how to answer this question. sorry, friend. @e.mccormick

Answer 3

Ok no problem.

Answer 4

Let use some words for denominators instead of numbers and see how it would work if the denominators were not the same:

Answer 5

\[\frac{3}{cats}+\frac{5}{dogs}\]

Answer 6

How would you add those?

Answer 7

If you leave them cats and dogs you end up with the same answer. But if you change them both to animals...then you can combine the two fractions.

Answer 8

Ok thank you so much I now understand and I will solve it my self. Thanks again.

Answer 9

What if you have 3 quarters - 2 dimes. Unless you change them both to dollars or cents, you cannot add them. Therefore the denominators must be the same before adding two fractions. yw

Answer 10

perfect explanation, thanks Mertsj, open my eyes.

Answer 11

yw