حاصل عبارت ها را به دست آورید.

پاسخ

$$
-\frac{4}{15} + \frac{4}{5} = \frac{-4+12}{15} = \frac{8}{15} \\[2ex]
-\frac{3}{8} - \frac{5}{12} = \frac{-9-10}{24} = -\frac{19}{24}\\[2ex]
-2-\frac{5}{3} = \frac{-6-5}{3}=-\frac{11}{3}\\[2ex]
-2+\frac{3}{5} = \frac{-10+3}{5}=-\frac{7}{5}\\[2ex]
-2\frac{1}{2}+3\frac{1}{3} = -\frac{5}{2} + \frac{10}{3} = \frac{-15+20}{6}=\frac{5}{6}\\[2ex]
-4\frac{1}{5} - 2\frac{1}{2} = -\frac{21}{5} - \frac{5}{2} = \frac{-42-25}{10}= -\frac{67}{10}\\[2ex]
7\frac{1}{3} - 10\frac{1}{4} = \frac{22}{3} - \frac{41}{4} = \frac{88-123}{12}=-\frac{35}{12}
$$