We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
154
4
avatar+2448 

Simplify

 Nov 14, 2018
 #1
avatar+99704 
+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

__________  ÷       ___

       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

 Nov 14, 2018
 #2
avatar+2448 
+1

Thanks CPhill! ^-^

RainbowPanda  Nov 14, 2018
 #3
avatar+99704 
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+46 
+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 \(\frac{5a+4a^2}{500}.\)

.
 Nov 14, 2018

31 Online Users

avatar
avatar
avatar
avatar