Question

(12 целых 522+7 целых 1722)-(13 целых 723-9 целых 1523)

Answer 1

$(12 frac{5}{22} + 7frac{17}{22}) - (13 frac{7}{23} - 9 frac{15}{23} ) = 20 - 3 frac{15}{23} = 16 frac{8}{23}$