Выполните вычитание:
а) $5\frac{2}{3} - 4$;
б) $12\frac{1}{4} - 9$;
в) $5\frac{2}{3} - \frac{1}{3}$;
г) $10\frac{8}{9} - \frac{2}{9}$;
д) $6\frac{3}{4} - 2\frac{1}{4}$;
е) $7\frac{4}{9} - 1\frac{1}{9}$.
$5\frac{2}{3} - 4 = 1\frac{2}{3}$
$12\frac{1}{4} - 9 = 3\frac{1}{4}$
$5\frac{2}{3} - \frac{1}{3} = 5\frac{1}{3}$
$10\frac{8}{9} - \frac{2}{9} = 10\frac{6}{9} = 10\frac{2}{3}$
$6\frac{3}{4} - 2\frac{1}{4} = 4\frac{2}{4} = 4\frac{1}{2}$
$7\frac{4}{9} - 1\frac{1}{9} = 6\frac{3}{9} = 6\frac{1}{3}$