Question

Sum of two rational numbers is -4 / 11 if one of them is -3/7 then find another

Answer 1

Consider the 'another' number to be X.
So as per the statement the formula would look something like this ->
$x + ( - \frac{ 3}{4} ) = - \frac{4}{11}$
take
$- \frac{3}{4}$
to the other side, and solve.
$x = - \frac{4}{11} + \frac{3}{7}$
your answer -->
$x = - \frac{1}{4}$
So the 'another' number is
$- \frac{1}{4}$