$$\Large 1\frac{3}{5} + 1\frac{8}{9} + 2\frac{4}{5}$$ = ?
 A) $$\Large 6\frac{19}{45}$$ B) $$\Large 6\frac{16}{45}$$ C) $$\Large 6\frac{17}{45}$$ D) $$\Large 6\frac{13}{45}$$

 D) $$\Large 6\frac{13}{45}$$

$$\Large 1\frac{3}{5}+1\frac{8}{9}+2\frac{4}{5} = \left(1+1+2\right) + \left(\frac{3}{5}+\frac{8}{9}+\frac{4}{5}\right)$$
$$\Large 4 + \frac{27+40+36}{45}$$
$$\Large 4 + \frac{103}{45} = 4 + 2\frac{13}{45} = 6\frac{13}{45}$$