2/5 x m = 16

To solve for m, we need to isolate it on one side of the equation.

First, we need to get rid of the fraction by multiplying both sides of the equation by the reciprocal of 2/5, which is 5/2.

(5/2) * (2/5) * m = (5/2) * 16
m = 40

Therefore, m = 40.