Вычислите разность:
а) $1\frac{1}{16} - \frac{1}{8}$;
б) $2\frac{4}{9} - \frac{2}{3}$;
в) $3\frac{1}{12} - 2\frac{3}{4}$;
г) $4\frac{2}{15} - 1\frac{2}{3}$.
$1\frac{1}{16} - \frac{1}{8} = 1\frac{1}{16} - \frac{2}{16} = (1\frac{1}{16} - 1) + \frac{14}{16} = \frac{1}{16} + \frac{14}{16} = \frac{15}{16}$
$2\frac{4}{9} - \frac{2}{3} = 2\frac{4}{9} - \frac{6}{9} = (2\frac{4}{9} - 1) + \frac{3}{9} = 1\frac{4}{9} + \frac{3}{9} = 1\frac{7}{9}$
$3\frac{1}{12} - 2\frac{3}{4} = 3\frac{1}{12} - 2\frac{9}{12} = 1\frac{1}{12} - \frac{9}{12} = (1\frac{1}{12} - 1) + \frac{3}{12} = \frac{1}{12} + \frac{3}{12} = \frac{4}{12} = \frac{1}{3}$
$4\frac{2}{15} - 1\frac{2}{3} = 4\frac{2}{15} - 1\frac{10}{15} = 3\frac{2}{15} - \frac{10}{15} = (3\frac{2}{15} - 1) + \frac{5}{15} = 2\frac{2}{15} + \frac{5}{15} = 2\frac{7}{15}$
Пожауйста, оцените решение
