Perform the operations as indicated, and express your answer in lowest terms. $\left( - \frac { 3 } { 10 } \right) \left( \frac { 18 } { 19 } \right) \left( - \frac { 20 } { 12 } \right)$
A) $- \frac { 10 } { 19 }$
B) $\frac { 9 } { 19 }$
C) $- \frac { 9 } { 19 }$
D) $\frac { 10 } { 19 }$
E) $\frac { 19 } { 9 }$

Question

Quizplus · Accepted Answer

First, simplify the fractions and multiply them together. The negatives cancel out, leaving a positive result. $\left( - \frac { 3 } { 10 } \right) \left( \frac { 18 } { 19 } \right) \left( - \frac { 20 } { 12 } \right) = \frac { 3 \times 18 \times 20 } { 10 \times 19 \times 12 }$. Simplifying, $\frac { 9 } { 19 }$.

Perform the Operations as Indicated, and Express Your Answer in Lowest