3 3/4 -1 4/5 +2 2/10 adalah

[tex]3 \frac{3}{4} - 1 \frac{4}{5} + 2 \frac{2}{10} \\ = \frac{15}{4} - \frac{9}{5} + \frac{22}{10} \\ = \frac{75}{20} - \frac{36}{20} + \frac{44}{20} \\ = \frac{83}{20} [/tex]