Question

The product of two rational numbers is - 28/81 if one of the numbers is 19/27 then the other one is ​

Answer 1

19/27*x=-28/81

x=-27/19*-28/81

x=-9/19*-28/27

x=-3/19*-28/9

x=-1/19*-28/3

x=+28/57

and=+28/57