Решите по образцу: 2-\frac{3}{4}=1\frac{4}{4}-\frac{3}{4}=1\frac{1}{4}. 2-\frac{5}{7} 4-\frac{9}{10} 3-\frac{1}{15} 8-\frac{4}{17} 7-\frac{3}{8} 3-\frac{1}{5} 2-\frac{7}{9} 7-\frac{3}{11} 4-\frac{1}{4} 9-\frac{4}{11} 9-\frac{3}{8} 5-\frac{5}{6} 6-\frac{8}{13} 10-\frac{7}{8} 12-\frac{7}{9}

Выполним вычитание смешанных чисел, представив целое число в виде дроби с нужным знаменателем.

1. $$2-\frac{5}{7}=1\frac{7}{7}-\frac{5}{7}=1\frac{2}{7}$$
2. $$4-\frac{9}{10}=3\frac{10}{10}-\frac{9}{10}=3\frac{1}{10}$$
3. $$3-\frac{1}{15}=2\frac{15}{15}-\frac{1}{15}=2\frac{14}{15}$$
4. $$8-\frac{4}{17}=7\frac{17}{17}-\frac{4}{17}=7\frac{13}{17}$$
5. $$7-\frac{3}{8}=6\frac{8}{8}-\frac{3}{8}=6\frac{5}{8}$$
6. $$3-\frac{1}{5}=2\frac{5}{5}-\frac{1}{5}=2\frac{4}{5}$$
7. $$2-\frac{7}{9}=1\frac{9}{9}-\frac{7}{9}=1\frac{2}{9}$$
8. $$7-\frac{3}{11}=6\frac{11}{11}-\frac{3}{11}=6\frac{8}{11}$$
9. $$4-\frac{1}{4}=3\frac{4}{4}-\frac{1}{4}=3\frac{3}{4}$$
10. $$9-\frac{4}{11}=8\frac{11}{11}-\frac{4}{11}=8\frac{7}{11}$$
11. $$9-\frac{3}{8}=8\frac{8}{8}-\frac{3}{8}=8\frac{5}{8}$$
12. $$5-\frac{5}{6}=4\frac{6}{6}-\frac{5}{6}=4\frac{1}{6}$$
13. $$6-\frac{8}{13}=5\frac{13}{13}-\frac{8}{13}=5\frac{5}{13}$$
14. $$10-\frac{7}{8}=9\frac{8}{8}-\frac{7}{8}=9\frac{1}{8}$$
15. $$12-\frac{7}{9}=11\frac{9}{9}-\frac{7}{9}=11\frac{2}{9}$$

Ответ: 1$$\frac{2}{7}$$, 3$$\frac{1}{10}$$, 2$$\frac{14}{15}$$, 7$$\frac{13}{17}$$, 6$$\frac{5}{8}$$, 2$$\frac{4}{5}$$, 1$$\frac{2}{9}$$, 6$$\frac{8}{11}$$, 3$$\frac{3}{4}$$, 8$$\frac{7}{11}$$, 8$$\frac{5}{8}$$, 4$$\frac{1}{6}$$, 5$$\frac{5}{13}$$, 9$$\frac{1}{8}$$, 11$$\frac{2}{9}$$