The Product of two rational number is 5/8.If one of them is -3/18,find

1.	The Product of two rational number is 5/8.If one of them is -3/18,find the other
Answer» Given $\bold{Product \ of \ 2 \ <klux>RATIONAL</klux> \ numbers} = \dfrac{5}{8}$ $\bold{One \ of \ the \ rational \ <klux>NUMBER</klux>} = \dfrac{-3}{18}$ Let the other rational number be X. $\implies \dfrac{-3}{18} x = \dfrac{5}{8}$ $\implies x = \dfrac{5}{8} * \dfrac{18}{-3}$ $\implies x = \dfrac{5}{4} * \dfrac{9}{-3}$ $\implies x = \dfrac{45}{-12}$ $\implies x = \dfrac{-15}{4}$ $\boxed{\boxed{\bold{Therefore, \ the \ other \ number \ is \ \frac{15}{4}}}}}}$