Question

НОМЕР 312 помигите пжж срочно

Answer 1

Ответ:

$(12\frac{19}{24} +5\frac{19}{28} )-3\frac{19}{24} =14\frac{19}{28}$

$6\frac{4}{9}-(1\frac{7}{24} +4\frac{4}{9} )=\frac{17}{24}$

Пошаговое объяснение:

1

$(12\frac{19}{24} +5\frac{19}{28} )-3\frac{19}{24} =12\frac{19}{24} +5\frac{19}{28} -3\frac{19}{24} =\\\\=12\frac{19}{24} -3\frac{19}{24} +5\frac{19}{28} =9 +5\frac{19}{28}=14\frac{19}{28}$

2

$6\frac{4}{9}-(1\frac{7}{24} +4\frac{4}{9} )=6\frac{4}{9}-1\frac{7}{24} -4\frac{4}{9} =\\\\=6\frac{4}{9}-4\frac{4}{9} -1\frac{7}{24}=2 -1\frac{7}{24}=1\frac{24}{24}-1\frac{7}{24}=\\\\=\frac{24-7}{24}=\frac{17}{24}$