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# Help asap ty

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4 Simplify

Nov 14, 2018

#1
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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   Nov 14, 2018
#2
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Thanks CPhill! ^-^

RainbowPanda  Nov 14, 2018
#3
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Is this process confusing???....it might not be the same as what you are presented....but....somehow....I find it easier   CPhill  Nov 14, 2018
#4
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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 $$\frac{5a+4a^2}{500}.$$

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Nov 14, 2018