А) 2 целые 5/18 - 5/6 б) 3 целые 2/5 - 11/15 в) 1 целая 4/5 - 9/10 г) 7/24 + 5/24 д) 17/18 - 5/18

а) [latex]2 \frac{5}{18} - \frac{5}{6} = \frac{41}{18} - \frac{5}{6} = \frac{41}{18} - \frac{15}{18} = \frac{26}{18} = \frac{13}{9} = 1 \frac{4}{9}[/latex] б) [latex]3 \frac{2}{5} - \frac{11}{15} = \frac{17}{5} - \frac{11}{15} = \frac{51}{15} - \frac{11}{15} = \frac{40}{15} = \frac{8}{3} = 2 \frac{2}{3} [/latex] в) [latex]1 \frac{4}{5} - \frac{9}{10} = \frac{9}{5} - \frac{9}{10} = \frac{18}{10} - \frac{9}{10} = \frac{9}{10} = 0,9[/latex] г) [latex] \frac{7}{24} + \frac{5}{24} = \frac{12}{24} = \frac{1}{2} = 0,5[/latex] д) [latex] \frac{17}{18} - \frac{5}{18} = \frac{12}{18} = \frac{6}{9} = \frac{2}{3} [/latex]