Question

I forgot my algebra in this part...
why did they separate the fraction.. i thought we would only separate it when the denominator had a variable by itself..

Answer 1

@Zepdrix

Answer 2

That's just how fractions work :U\[\large\rm \frac{a+b}{stuff}\quad=\quad \frac{a}{stuff}+\frac{b}{stuff}\]

Answer 3

\[\large\rm \frac{1+(-4v)}{stuff}\quad=\quad\frac{1}{stuff}+\frac{-4v}{stuff}\]

Answer 4

i thought the denominator would have to some type of multiplication

Answer 5

I don't understand what you mean D:

Answer 6

\[\large\rm \frac{2+3}{7}=\frac{2}{3}+\frac{3}{7}\]

Two-sevenths and three-sevenths is 5 sevenths.
The bottom doesn't change when you split it into pieces.
It's still 2 of 7 and 3 and 7

Answer 7

and 3 of 7*

Answer 8

Are you confusing this basic fraction math with partial fraction decomposition maybe?

Answer 9

oh wait nvm i got it ;p

Answer 10

yeh i was getting confused by that
for ex

Answer 11

Ya you gotta treat the denominator as a whole thingy-ma-jigger :x
The bottom can not be broken up.