Вычислить: левая часть: 1) 2/4 + 5/16; 2) 7/12 − 3/6; 3) 11/16 − 5/8; 4) 1/8 + 1/6; 5) 3/16 − 1/18 + 3/4. Правая часть: 1) 6/35 + 3/10; 2) 8/15 − 4/9; 3) 4/15 + 7/12; 4) 11/40 − 5/30; 5) 4/5 − 2/3 + 9/15.

Левая часть

1. \(\frac{2}{4}+\frac{5}{16}=\frac{8}{16}+\frac{5}{16}=\frac{13}{16}\).
2. \(\frac{7}{12}-\frac{3}{6}=\frac{7}{12}-\frac{6}{12}=\frac{1}{12}\).
3. \(\frac{11}{16}-\frac{5}{8}=\frac{11}{16}-\frac{10}{16}=\frac{1}{16}\).
4. \(\frac{1}{8}+\frac{1}{6}=\frac{3}{24}+\frac{4}{24}=\frac{7}{24}\).
5. \(\frac{3}{16}-\frac{1}{18}+\frac{3}{4}=\frac{27}{144}-\frac{8}{144}+\frac{108}{144}=\frac{127}{144}\).

Правая часть

1. \(\frac{6}{35}+\frac{3}{10}=\frac{12}{70}+\frac{21}{70}=\frac{33}{70}\).
2. \(\frac{8}{15}-\frac{4}{9}=\frac{24}{45}-\frac{20}{45}=\frac{4}{45}\).
3. \(\frac{4}{15}+\frac{7}{12}=\frac{16}{60}+\frac{35}{60}=\frac{51}{60}=\frac{17}{20}\).
4. \(\frac{11}{40}-\frac{5}{30}=\frac{33}{120}-\frac{20}{120}=\frac{13}{120}\).
5. \(\frac{4}{5}-\frac{2}{3}+\frac{9}{15}=\frac{12}{15}-\frac{10}{15}+\frac{9}{15}=\frac{11}{15}\).

Ответ: левая часть — 1) \(\frac{13}{16}\); 2) \(\frac{1}{12}\); 3) \(\frac{1}{16}\); 4) \(\frac{7}{24}\); 5) \(\frac{127}{144}\). Правая часть — 1) \(\frac{33}{70}\); 2) \(\frac{4}{45}\); 3) \(\frac{17}{20}\); 4) \(\frac{13}{120}\); 5) \(\frac{11}{15}\).