Выполните действия:
а) $11\frac{2}{7} + 4\frac{3}{7} - 6\frac{4}{7}$;
б) $26\frac{7}{19} - 13\frac{4}{19} + 5\frac{2}{19}$;
в) $44\frac{2}{9} + 8\frac{5}{9} - \frac{7}{9}$;
г) $5\frac{7}{10} + 3\frac{9}{10} + 1\frac{3}{10}$;
д) $3\frac{17}{100} - 2\frac{13}{100} - 1$;
е) $8 - 4\frac{31}{100} - 2\frac{57}{100}$.
$11\frac{2}{7} + 4\frac{3}{7} - 6\frac{4}{7} = 11 + 4 - 6 + \frac{2}{7} + \frac{3}{7} - \frac{4}{7} = 9 + \frac{1}{7} = 9\frac{1}{7}$
$26\frac{7}{19} - 13\frac{4}{19} + 5\frac{2}{19} = 26 - 13 + 5 + \frac{7}{19} - \frac{4}{19} + \frac{2}{19} = 18 + \frac{5}{19} = 18\frac{5}{19}$
$44\frac{2}{9} + 8\frac{5}{9} - \frac{7}{9} = 44 + 8 + \frac{2}{9} + \frac{5}{9} - \frac{7}{9} = 52 + 0 = 52$
$5\frac{7}{10} + 3\frac{9}{10} + 1\frac{3}{10} = 5 + 3 + 1 + \frac{7}{10} + \frac{9}{10} + \frac{3}{10} = 9 + \frac{19}{10} = 9 + 1\frac{9}{10} = 9 + 1 + \frac{9}{10} = 10\frac{9}{10}$
$3\frac{17}{100} - 2\frac{13}{100} - 1 = 3 - 2 - 1 + \frac{17}{100} - \frac{13}{100} = 0 + \frac{4}{100} = \frac{4}{100}$
$8 - 4\frac{31}{100} - 2\frac{57}{100} = 8 - 4 - 2 - \frac{31}{100} - \frac{57}{100} = 7 - 4 - 2 + \frac{100}{100} - \frac{31}{100} - \frac{57}{100} = 1 + \frac{12}{100} = 1\frac{12}{100}$
Пожауйста, оцените решение