Subtract the Rational Expressions $\frac { n - 4 } { 9 } - \frac { n - 7 } { 12 }$

question 82

Multiple Choice

Subtract the rational expressions. Be sure to express your answer in simplest form. $\frac { n - 4 } { 9 } - \frac { n - 7 } { 12 }$

• A) \(\frac { 3 n + 5 } { 108 }\)
• B) \(\frac { 21 n - 37 } { 108 }\)
• C) \(\frac { n + 5 } { 36 }\)
• D) \(\frac { n - 37 } { 36 }\)