If the question is 40 - [tex] \frac{16}{4} [/tex] , then you would do 16 ÷ 4 = 4, and then 40 - 4 = 36.
If the question is [tex] \frac{40 - 16}{4} [/tex] , then you divide both 40 and 16 by 4, to get 10 - 4 = 6.
I hope this helps!
The answer is 36 if it's 16/4 fraction