+0  
 
0
56
4
avatar+2291 

Simplify

RainbowPanda  Nov 14, 2018
 #1
avatar+92608 
+2

Simplify the top

 

Cross-multiply   and keep the same sign between the terms as we have between the fractions

5a + 4a^2

Take the product of the denominators

4 * 5  =  20

 

So.....we have

 

[ 5a + 4a^2]              25

__________  รท       ___

       20                      1

 

Just like "regular" fractions......Invert the second fraction and multiply

 

 

[ 5a + 4a^2 ]                  1

___________      x      _____

     20                            25

 

 

5a  +  4a^2

_________

   500

 

 

 

cool cool cool

CPhill  Nov 14, 2018
 #2
avatar+2291 
+1

Thanks CPhill! ^-^

RainbowPanda  Nov 14, 2018
 #3
avatar+92608 
0

Is this process confusing???....it might not be the same as what you are presented....but....somehow....I find it easier

 

 

cool cool cool

CPhill  Nov 14, 2018
 #4
avatar+20 
+1

I agree with @CPhill! We have \(\frac{5a+4a^2}{20}\) after joining \(\frac{a}{4}+\frac{a^2}{5}\), together. Now. we have \(\frac{\frac{5a+4a^2}{20}}{25}\) which is \(\frac{5a+4a^2}{20\cdot \:25}\), or our final answer of \(\frac{5a+4a^2}{500}.\)

neworleans06  Nov 14, 2018

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