Ответ:
- \(3\frac{3}{5}+3\frac{11}{15}=6+\frac{9}{15}+\frac{11}{15}=7\frac{1}{3}\).
- \(3\frac{7}{15}+8\frac{3}{4}=11+\frac{28}{60}+\frac{45}{60}=12\frac{13}{60}\).
- \(4\frac{3}{4}+5\frac{4}{5}=9+\frac{15}{20}+\frac{16}{20}=10\frac{11}{20}\).
- \(4\frac{2}{9}+5\frac{4}{15}=9+\frac{10}{45}+\frac{12}{45}=9\frac{22}{45}\).
- \(5\frac{7}{12}+3\frac{1}{4}=8+\frac{7}{12}+\frac{3}{12}=8\frac{5}{6}\).
Ответ: а) 7 1/3; б) 12 13/60; в) 10 11/20; г) 9 22/45; д) 8 5/6.
