$$\frac{4}{3}+\frac{8}{12}$$

$$\frac{d}{dx}\left(\frac{\sqrt{y}\left(3-5\sqrt{y}\right)}{9-25y}\right)$$

$$\frac{3}{2}x+4^3$$

$$x^2-\frac{2}{6}x$$

$$\left(\frac{2}{3}x^2-\frac{3}{5}y^2\right)^2$$

$$\left(1246\right)\left(24\right)$$