Question

what should be subtracted from -3/4,so as to get 5/6?

Answer 1

Solution:-
Let the number be x.
A/q
$\frac{ - 3}{4} - x = \frac{5}{6} \\ x = \frac{ - 3}{4} - \frac{5}{6} \\ x = \frac{ - 19}{12}$

Answer 2

-3/4-5/6=x
-9/12-10/12=x
-19/12=x