Calculate: (7x+15)/(6x+12)+(2x+5)/(6x+12)

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Expression: $\frac{ 7x+15 }{ 6x+12 }+\frac{ 2x+5 }{ 6x+12 }$

Write all numerators above the common denominator

$\frac{ 7x+15+2x+5 }{ 6x+12 }$

Collect like terms

$\frac{ 9x+15+5 }{ 6x+12 }$

Add the numbers

$\frac{ 9x+20 }{ 6x+12 }$

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