[tex]1 \frac{4}{5} +2 \frac{3}{20} + \frac{5}{3} \\ \\ 3 + \frac{4}{5} + \frac{3}{20} + \frac{5}{3} \\ \\ LCD = 60 \\ \\ 3 + \frac{4 \times 12}{5 \times 12} + \frac{3 \times 3}{20 \times 3} + \frac{5 \times 20}{3 \times 20} \\ \\ 3 + \frac{48}{60} + \frac{9}{60} + \frac{100}{60} \\ \\ 3 + \frac{48 + 9 + 100}{60} \\ \\ 3 + \frac{157}{60} \\ \\ 3 + 2 \frac{37}{60} \\ \\ 5 \frac{37}{60} \\ \\ Answer: \fbox {5 37/60} \ or \ \fbox {5.6167} [/tex]
