Hello!
To solve this exercise, we have to replace where's m and n by its values, look:
[tex]\frac{16}{n}-m[/tex]Replacing:
• m, = 2
,• n, = 4
[tex]\begin{gathered} \frac{16}{4}-2=4-2=2 \\ \end{gathered}[/tex]So, the value of this expression when m=2 and n=4 is 2.