Question

СДЕЛАЙТЕ ВПРАВА 957 4,5,6,8,11,12

Answer 1

4) $-8\frac{9}{14} + 3\frac{3}{7} = -8\frac{9}{14} + 3\frac{6}{14} = -5\frac{3}{14}$

5)  $7\frac{5}{12} + (-3\frac{7}{24}) = 7\frac{10}{24} + (-3\frac{7}{24})= 4\frac{3}{24} = 4\frac{1}{8}$

6) $-6\frac{11}{12} + (-8\frac{13}{18} ) = -6\frac{33}{36} + (-8\frac{26}{36}) = -14\frac{59}{36} = -15\frac{23}{36}$

8) $-11\frac{7}{9} + 8\frac{2}{15} = -11\frac{35}{45} + 8\frac{6}{45} = -3\frac{29}{45}$

11)  $9\frac{1}{6} + (-5\frac{3}{4}) = 8\frac{14}{12} + (-5\frac{9}{12}) = 3\frac{5}{12}$

12) $-3\frac{8}{9} + (-2\frac{1}{12})= -3\frac{32}{36} + (-2\frac{3}{36}) = -5\frac{35}{36}$