Question

Find the sum of the rational numbers
$\frac{-7}{19}and\frac{-2}{57}.$

• A. $\frac{-21}{57}$
• B. $\frac{-23}{57}$
• C. $\frac{-22}{47}$
• D. $\frac{-32}{47}$

Answer 1

The correct option is B

$\frac{-23}{57}$

$\frac{-7}{19}+\frac{-2}{57}=\frac{(-7\times 3)}{(19\times 3)}+\frac{-2}{57}$

$=\frac{-21}{57}+\frac{-2}{57}=\frac{-23}{57}$