We first expand out the (*ax*)^{2} on the top of the second fraction to give *a*^{2}*x*^{2}.

Also, because it is multiplication, we can write it as one fraction (multiply tops, multiply bottoms).

`(18sy^3)/(ax^2)xx((ax)^2)/(3s) = (18sy^3xxa^2x^2)/(ax^2xx3s)`

Next, we cancel the 18 on top with the 3 on bottom (giving 6 on top).

Also we can cancel the *s* on top and bottom.

The *a*^{2} on top cancels with the *a* on bottom to give* a* on top.

The *x*^{2} on top cancels with the *x*^{2}* *on bottom to give 1.

We then multiply out what is left to give the final answer.

`= (6y^3xxa)/1=6ay^3`

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