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Mathematics 7 Online
OpenStudy (anonymous):

(5)/(2x+8)+(7)/(3x+12) Please Explain Steps!

OpenStudy (anonymous):

\[\frac{ 5 }{ 2x+8 }+\frac{ 7 }{ 3x+12 }\] Can you factor the denominators?

OpenStudy (anonymous):

Yes, by factoring out their respective GCF's.

OpenStudy (anonymous):

2(x+4) and 3(x+4)

OpenStudy (anonymous):

ok so then you need a common denominator by finding the lcm of 2(x +4) and 3(x + 4)

OpenStudy (anonymous):

6(x+4)?

OpenStudy (anonymous):

right. so then you would multiply the first fraction by 3/3 and the second by 2/2 to get the common denominator

OpenStudy (anonymous):

Oh! That makes sense. It was the numerators that I was confused about.

OpenStudy (anonymous):

Leaving us with 29/6(x+4)?

OpenStudy (anonymous):

exactly

OpenStudy (anonymous):

Thank you so much for your explanation!

OpenStudy (anonymous):

you're welcome

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