Since it is the term that multiplies the variables, the coefficient is of [tex]\frac{3}{4}[/tex].
In an algebraic expression, the coefficient is the term that multiplies the variables.
In this problem, the expression is:
[tex]\frac{3}{4}mn[/tex]
Hence, the coefficient is of [tex]\frac{3}{4}[/tex].
A similar problem is given at https://brainly.com/question/24417465