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15 points for someone who can answer & explain this to me thanks-example-1
User Navarasu
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1 Answer

5 votes

Answer:

see explanation

Explanation:

Given


(9)/(a^2+9a+20) ,
(7a)/(a^2+11a+28)

Factor the denominators of both fractions


(9)/((a+4)(a+5)) ,
(7a)/((a+4)(a+7))

The lowest common denominator of both fractions is (a + 4)(a + 5)(a + 7)

Multiply numerator/denominator of first fraction by (a + 7)

Multiply numerator/denominator of second fraction by (a + 5 )


(9(a+7))/((a+4)(a+5)(a+7)) ,
(7a(a+5))/((a+4)(a+5)(a+7)) , then


(9a+63)/((a+4)(a+5)(a+7)) ,
(7a^2+35a)/((a+4)(a+5)(a+7))

User MaxZoom
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