Aplicamos a regra: $\frac{a}{b}$$=\frac{a}{b}\frac{radicalfactor\left(b\right)}{radicalfactor\left(b\right)}$, onde $a=14y$ e $b=\sqrt{2y}$

Aplicamos a regra: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, onde $a=14y$, $b=\sqrt{2y}$, $c=\sqrt{2y}$, $a/b=\frac{14y}{\sqrt{2y}}$, $f=\sqrt{2y}$, $c/f=\frac{\sqrt{2y}}{\sqrt{2y}}$ e $a/bc/f=\frac{14y}{\sqrt{2y}}\frac{\sqrt{2y}}{\sqrt{2y}}$

Aplicamos a regra: $\frac{a}{a}$$=1$, onde $a=y$ e $a/a=\frac{14y\sqrt{2y}}{2y}$