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(5c-8d/3c) - (2c-10d/3c)

 Apr 22, 2015

Best Answer 

 #2
avatar+118667 
+5

Not quite Jay Cole

First I am goingto put brackets around 3c because I think that is what you really want - 

I am mindreading I appologise if I get it wrong

(5c-8d/[3c]) - (2c-10d/[3c])

 

$$\\(5c-\frac{8d}{3c}) - (2c-\frac{10d}{3c})\\\\
=5c-\frac{8d}{3c} -1 (2c-\frac{10d}{3c})\\\\
=5c-\frac{8d}{3c} -2c+\frac{10d}{3c}\\\\
=5c-2c-\frac{8d}{3c} +\frac{10d}{3c}\\\\
=3c+\frac{-8d+10d}{3c}\\\\
=3c+\frac{2d}{3c}\\\\$$

 Apr 23, 2015
 #1
avatar+66 
0

 ud get 3c-18d/3c. since the stuff on the buttom is the same u just have to deal with the stuff on top. i forget which ones the numberator and which ones the denomenator.

 Apr 22, 2015
 #2
avatar+118667 
+5
Best Answer

Not quite Jay Cole

First I am goingto put brackets around 3c because I think that is what you really want - 

I am mindreading I appologise if I get it wrong

(5c-8d/[3c]) - (2c-10d/[3c])

 

$$\\(5c-\frac{8d}{3c}) - (2c-\frac{10d}{3c})\\\\
=5c-\frac{8d}{3c} -1 (2c-\frac{10d}{3c})\\\\
=5c-\frac{8d}{3c} -2c+\frac{10d}{3c}\\\\
=5c-2c-\frac{8d}{3c} +\frac{10d}{3c}\\\\
=3c+\frac{-8d+10d}{3c}\\\\
=3c+\frac{2d}{3c}\\\\$$

Melody Apr 23, 2015

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