Solution
$$\frac{15}{20}$$ + $$\frac{4}{5} \times \frac{2}{3} \times \frac{8}{5}$$
= $$\frac{15}{20}+\frac{64}{75}$$
= $$\frac{225+256}{300}$$
= $$\frac{481}{300}$$
=1.6
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