Question

56 баллов срочно! Удачи помогите!

Answer 1

$4 frac{5}{11} + 3 frac{9}{11} = 8 frac{3}{11} \ 4 frac{5 times 1}{11} + 3 frac{9 times 1}{11} = 4 + 3 frac{5 + 9}{11} = 7 frac{14}{11} = 8 frac{3}{11} \ \ 8 frac{4}{13} - 5 frac{8}{13} = 2 frac{9}{13} \ 8 frac{4 times 1}{13} - 5 frac{8 times 1}{13} = 7 - 5 + frac{17 - 8}{13} = 2 frac{9}{13}$