Calculate this limit : $lim_{x to infty} frac{sqrt{x}+sqrt[4]{x}}{sqrt[3]{x}+sqrt[6]{x}}$

Calculate this limit :

$$\lim_{x \to +\infty} \frac{\sqrt{x}+\sqrt[4]{x}}{\sqrt[3]{x}+\sqrt[6]{x}}$$

It is not allowed to use Hopital rule or taylor
I tried to factorize but i didn't find any result