Помогите пожалуйста!!! Решите 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13)

1) 9 целых 9/9 или 10 целых. 2)16 целых 6/19. 3) 5 целых 1/13. 4) 5 целых 4/8. 5) 8/11. 6) 27/40. 8) 7/10. 9) 2 целых 4/7. 10) 5 целых 14/20. 11) 2 целых 8/14. 12) 2 целых 15/21. 13)8 целых.  

1) [latex]6 \frac{4}{9} + 3 \frac{5}{9} [/latex] = [latex]9 \frac{9}{y9} [/latex] = 10 2) [latex]10 \frac{11}{19} + 5 \frac{14}{19} = [/latex][latex]15 \frac{25}{19} = 16 \frac{6}{19} [/latex] 3) [latex]2 \frac{3}{13} + 2 \frac{11}{13} = [latex]4 \frac{14}{13} [/latex] = [latex]5 \frac{1}{13} [/latex] 4) [latex]1 \frac{5}{8} + 3 \frac{7}{8} =  [latex]4 \frac{12}{8} = 5 \frac{4}{8} [/latex] 5) [latex]1 - \frac{3}{11} = \frac{11}{11} - \frac{3}{11} = \frac{8}{11} [/latex] 6) [latex]1 - \frac{13}{40} = \frac{40}{40} - \frac{13}{40} = \frac{27}{40} [/latex] 8) [latex]10 - 9 \frac{3}{10} = 9 \frac{10}{10} - 9 \frac{3}{10} = \frac{7}{10} [/latex] 9) [latex]5 \frac{2}{7} - 2 \frac{5}{7} = 4 \frac{7}{7} - 2 \frac{5}{7} = 2 \frac{2}{7} [/latex]  10) [latex]14 \frac{6}{20} - 8 \frac{12}{20} = 13 \frac{20}{20} - 8 \frac{12}{20} = 5 \frac{8}{20} [/latex] 11) [latex]8 \frac{3}{14} - 5 \frac{9}{14} = 7 \frac{14}{14} - 5 \frac{9}{14} = 2 \frac{5}{14} [/latex] 12)  [latex]7 \frac{10}{21} - 4 \frac{16}{21} = 6 \frac{21}{21} - 4 \frac{16}{21} = 2 \frac{5}{21} [/latex] 13) [latex]14 \frac{8}{31} - 6 \frac{8}{31} = 8 [/latex]