Question

решите пожалуйста 8 и 9 молю ааа

Answer 1

8) А - 1

В - 2

С - 5

9)

$2 frac{7}{16} div 1 frac{7}{8} - 5 frac{7}{9} times 2 frac{1}{13} + 4 frac{4}{5} = \ = frac{39}{16} div frac{15}{8} - frac{52}{9} times frac{27}{13} + frac{24}{5} = \ = frac{39 times 8}{16 times 15} - frac{52 times 27}{9 times 13} + frac{24}{5} = \ = frac{13}{10} - 12 + frac{48}{10} = \ = frac{61}{10} - 12 = \ = 6.1 - 12 = \ = - 5.9$