Решение:
\[ \frac{3}{2} - \frac{2}{5} = \frac{3 \times 5}{2 \times 5} - \frac{2 \times 2}{5 \times 2} = \frac{15}{10} - \frac{4}{10} = \frac{15 - 4}{10} = \frac{11}{10} \]
\[ \frac{13}{5} + \frac{11}{10} = \frac{13 \times 2}{5 \times 2} + \frac{11}{10} = \frac{26}{10} + \frac{11}{10} = \frac{26 + 11}{10} = \frac{37}{10} \]
\[ \frac{37}{10} = 3.7 \]
Ответ: 3.7