Выполнить сложение:

Решение:

• \( 6 + 3 \frac{4}{5} = (6+3) + \frac{4}{5} = 9 \frac{4}{5} \)
• \( 8 \frac{3}{4} + 2 \frac{11}{12} = 8 \frac{9}{12} + 2 \frac{11}{12} = (8+2) + \frac{9+11}{12} = 10 \frac{20}{12} = 10 \frac{5}{3} = 11 \frac{2}{3} \)
• \( 10 \frac{13}{14} + 5 = (10+5) + \frac{13}{14} = 15 \frac{13}{14} \)
• \( 12 \frac{15}{16} + 2 \frac{2}{32} = 12 \frac{15}{16} + 2 \frac{1}{16} = (12+2) + \frac{15+1}{16} = 14 \frac{16}{16} = 14+1 = 15 \)
• \( 4 \frac{9}{14} + 5 \frac{11}{12} = 4 \frac{54}{84} + 5 \frac{77}{84} = (4+5) + \frac{54+77}{84} = 9 \frac{131}{84} = 9 + 1 \frac{47}{84} = 10 \frac{47}{84} \)
• \( 3 \frac{1}{3} + 3 \frac{7}{21} = 3 \frac{7}{21} + 3 \frac{7}{21} = (3+3) + \frac{7+7}{21} = 6 \frac{14}{21} = 6 \frac{2}{3} \)

Ответ: 9 \( \frac{4}{5} \); 11 \( \frac{2}{3} \); 15 \( \frac{13}{14} \); 15; 10 \( \frac{47}{84} \); 6 \( \frac{2}{3} \).