Calculate: (4x^4)/(12x^3y)

Expression: $\frac{4x^{4}}{12x^{3}y}$

Factor the number: $ 12=4\cdot 3$

$=\frac{4x^{4}}{4\cdot 3x^{3}y}$

Cancel the common factor: $ 4$

$=\frac{x^{4}}{3x^{3}y}$

Simplify $\frac{x^{4}}{x^{3}}:{\quad}x$

$=\frac{x}{3y}$