$$15\times \left(\frac{18+4}{9}\right)$$
Add $18$ and $4$ to get $22$.$$15\times \left(\frac{22}{9}\right)$$
Express $15\times \left(\frac{22}{9}\right)$ as a single fraction.$$\frac{15\times 22}{9}$$
Multiply $15$ and $22$ to get $330$.$$\frac{330}{9}$$
Reduce the fraction $\frac{330}{9}$ to lowest terms by extracting and canceling out $3$.$$\frac{110}{3}$$