Perform the indicated operation. Simplify if possible.
-$$\frac { 8 } { 9 x } - \frac { 2 } { 7 x }$$
A) $\frac { 38 } { 63 x ^ { 2 } }$
B) $\frac { 6 } { 63 x }$
C) $\frac { 38 } { 126 x }$
D) $\frac { 38 } { 63 x }$

Question

Quizplus · Accepted Answer

To combine the fractions, find a common denominator, which is $63x$ in this case. Convert each fraction to have this common denominator, resulting in $\frac{56}{63x} - \frac{18}{63x}$, and then subtract to get $\frac{38}{63x}$.

Perform the Indicated Operation 89x−27x\frac { 8 } { 9 x } - \frac { 2 } { 7 x }9x8​−7x2​

Perform the Indicated Operation $\frac { 8 } { 9 x } - \frac { 2 } { 7 x }$