Add or subtract.
-$\frac { x } { x + 4 } + \frac { 3 } { x + 4 }$
A) $\frac { 3 } { 4 }$
B) $\frac { x + 3 } { x + 4 }$
C) $\frac { 4 x } { x + 4 }$
D) $\frac { 3 x } { x ^ { 2 } + 8 x + 16 }$

Question

Quizplus · Accepted Answer

Since both fractions have the same denominator ($x + 4$), they can be combined directly: $\frac{x}{x + 4} + \frac{3}{x + 4} = \frac{x + 3}{x + 4}$.

Add or Subtract xx+4+3x+4\frac { x } { x + 4 } + \frac { 3 } { x + 4 }x+4x​+x+43​

Add or Subtract $\frac { x } { x + 4 } + \frac { 3 } { x + 4 }$