Add or subtract.
-$\frac { 6 } { x } + \frac { 7 } { x - 8 }$
A) $\frac { 48 x - 13 } { x ( 8 - x ) }$
B) $\frac { 13 x - 48 } { x ( x - 8 ) }$
C) $\frac { 48 x - 13 } { x ( x - 8 ) }$
D) $\frac { 13 x - 48 } { x ( 8 - x ) }$

Question

Quizplus · Accepted Answer

To add fractions, you need a common denominator. Here, the common denominator is $x(x-8)$. So, the addition becomes $\frac{6(x-8)+7x}{x(x-8)} = \frac{6x-48+7x}{x(x-8)} = \frac{13x-48}{x(x-8)}$.

Add or Subtract 6x+7x−8\frac { 6 } { x } + \frac { 7 } { x - 8 }x6​+x−87​

Add or Subtract $\frac { 6 } { x } + \frac { 7 } { x - 8 }$