Выполни вычитание: 1) 2 1/6 − 1 1/16; 2) 4 9/13 − 1 9/13; 3) 2 9/17 − 2/3; 4) 1 5/21 − 4/7; 5) 5 8/11 − 3 10/11; 6) 5 − 2 5/6; 7) 2 4/9 − 2; 8) 5 17/18 − 11/18.

\(2\frac{1}{6}-1\frac{1}{16}=1+\frac{8}{48}-\frac{3}{48}=1\frac{5}{48}\).

\(4\frac{9}{13}-1\frac{9}{13}=3\).

\(2\frac{9}{17}-\frac{2}{3}=2+\frac{27}{51}-\frac{34}{51}=1\frac{44}{51}\).

\(1\frac{5}{21}-\frac{4}{7}=1+\frac{5}{21}-\frac{12}{21}=\frac{14}{21}=\frac{2}{3}\).

Займём единицу: \(5\frac{8}{11}=4\frac{19}{11}\). Тогда \(4\frac{19}{11}-3\frac{10}{11}=1\frac{9}{11}\).

\(5-2\frac{5}{6}=4\frac{6}{6}-2\frac{5}{6}=2\frac{1}{6}\).

\(2\frac{4}{9}-2=\frac{4}{9}\).

\(5\frac{17}{18}-\frac{11}{18}=5\frac{6}{18}=5\frac{1}{3}\).