Выполни сложение: 1) 4 3/4 + 2 3/8; 2) 3 2/3 + 3 3/4; 3) 5 7/15 + 1 3/20; 4) 7/9 + 1 7/9; 5) 3/16 + 1/16; 6) 5 2/3 + 5 2/3; 7) 8/9 + 3; 8) 3 8/15 + 3 7/15.

Приведём дроби к общему знаменателю: \(4\frac{3}{4}+2\frac{3}{8}=4\frac{6}{8}+2\frac{3}{8}=6\frac{9}{8}=7\frac{1}{8}\).

\(3\frac{2}{3}+3\frac{3}{4}=6+\frac{8}{12}+\frac{9}{12}=6\frac{17}{12}=7\frac{5}{12}\).

\(5\frac{7}{15}+1\frac{3}{20}=6+\frac{28}{60}+\frac{9}{60}=6\frac{37}{60}\).

\(\frac{7}{9}+1\frac{7}{9}=1+\frac{14}{9}=2\frac{5}{9}\).

\(\frac{3}{16}+\frac{1}{16}=\frac{4}{16}=\frac{1}{4}\).

\(5\frac{2}{3}+5\frac{2}{3}=10+\frac{4}{3}=11\frac{1}{3}\).

\(\frac{8}{9}+3=3\frac{8}{9}\).

\(3\frac{8}{15}+3\frac{7}{15}=6+\frac{15}{15}=7\).