Just looking at this problem, assuming nothing, we follow the order of operations:

2*y /5 *x /4 /6 *x

Numerator: 2y*5*x*x = 10x²y

Denominator: 5*4*6 = 120

So it would simplify to x²y/12

But if, for example, you mean that we divide by (6x), then that changes things.