а) $4 + 5\frac{1}{4}$;
б) $4\frac{3}{4} - 2$;
в) $1\frac{2}{9} + 3$;
г) $4\frac{1}{3} - 1\frac{1}{2}$.
$4 + 5\frac{1}{4} = 4 + 5 + \frac{1}{4} = 9 + \frac{1}{4} = 9\frac{1}{4}$
$4\frac{3}{4} - 2 = 4 - 2 + \frac{3}{4} = 2 + \frac{3}{4} = 2\frac{3}{4}$
$1\frac{2}{9} + 3 = 1 + 3 + \frac{2}{9} = 4\frac{2}{9}$
$4\frac{1}{3} - 1\frac{1}{2} = 4\frac{1}{3} - 1 - \frac{1}{2} = 3\frac{1}{3} - \frac{1}{2} = 2\frac{4}{3} - \frac{1}{2} = 2 + \frac{4 * 2 - 1 * 3}{6} = 2 + \frac{8 - 3}{6} = 2\frac{5}{6}$
Пожауйста, оцените решение
