Perform the indicated operation. Simplify if possible.
-$$\frac { 13 } { 9 x ^ { 2 } y } - \frac { 6 } { 9 x ^ { 2 } y }$$
A) 7
B) $\frac { 7 } { 18 x ^ { 2 } y }$
C) $\frac { 9 x ^ { 2 } y } { 7 }$
D) $\frac { 7 } { 9 x ^ { 2 } y }$

Question

Quizplus · Accepted Answer

Since the denominators are the same, you can subtract the numerators directly: $ \frac{13}{9x^2y} - \frac{6}{9x^2y} = \frac{13-6}{9x^2y} = \frac{7}{9x^2y} $.

Perform the Indicated Operation 139x2y−69x2y\frac { 13 } { 9 x ^ { 2 } y } - \frac { 6 } { 9 x ^ { 2 } y }9x2y13​−9x2y6​

Perform the Indicated Operation $\frac { 13 } { 9 x ^ { 2 } y } - \frac { 6 } { 9 x ^ { 2 } y }$