Perform the indicated operations, and express your answer in reduced form. $\frac { 5 } { x } - \frac { 7 } { y } - \frac { 4 } { x y }$
A) $\frac { 5 y - 7 x - 4 } { x y }$
B) $\frac { 5 y - 7 x + 4 } { x y }$
C) $\frac { 5 x - 7 y - 4 } { x y }$
D) $\frac { 4 y - 7 x - 5 } { x y }$
E) $\frac { 5 y - 4 x - 7 } { x y }$

Question

Quizplus · Accepted Answer

To combine the fractions, find a common denominator, which is $xy$. Thus, $\frac { 5 } { x } - \frac { 7 } { y } - \frac { 4 } { x y } = \frac { 5y } { xy } - \frac { 7x } { xy } - \frac { 4 } { xy } = \frac { 5y - 7x - 4 } { xy }$.

Perform the Indicated Operations, and Express Your Answer in Reduced 5x−7y−4xy\frac { 5 } { x } - \frac { 7 } { y } - \frac { 4 } { x y }x5​−y7​−xy4​

Perform the Indicated Operations, and Express Your Answer in Reduced $\frac { 5 } { x } - \frac { 7 } { y } - \frac { 4 } { x y }$