35. Вычислите: 3/2 + 1/4; 2/3 + 1/9; 1/3 − 1/4; 1/3 − 1/9; 1/3 + 1/4; 1/3 + 1/9; 3/4 − 1/2; 2/3 − 1/9; 3/2 − 1/3; 11/24 + 2/15.

Приводим дроби к общему знаменателю, затем складываем или вычитаем числители.

1. \(\frac{3}{2}+\frac{1}{4}=\frac{6}{4}+\frac{1}{4}=\frac{7}{4}=1\frac{3}{4}\).
2. \(\frac{2}{3}+\frac{1}{9}=\frac{6}{9}+\frac{1}{9}=\frac{7}{9}\).
3. \(\frac{1}{3}-\frac{1}{4}=\frac{4}{12}-\frac{3}{12}=\frac{1}{12}\).
4. \(\frac{1}{3}-\frac{1}{9}=\frac{3}{9}-\frac{1}{9}=\frac{2}{9}\).
5. \(\frac{1}{3}+\frac{1}{4}=\frac{4}{12}+\frac{3}{12}=\frac{7}{12}\).
6. \(\frac{1}{3}+\frac{1}{9}=\frac{3}{9}+\frac{1}{9}=\frac{4}{9}\).
7. \(\frac{3}{4}-\frac{1}{2}=\frac{3}{4}-\frac{2}{4}=\frac{1}{4}\).
8. \(\frac{2}{3}-\frac{1}{9}=\frac{6}{9}-\frac{1}{9}=\frac{5}{9}\).
9. \(\frac{3}{2}-\frac{1}{3}=\frac{9}{6}-\frac{2}{6}=\frac{7}{6}=1\frac{1}{6}\).
10. \(\frac{11}{24}+\frac{2}{15}=\frac{55}{120}+\frac{16}{120}=\frac{71}{120}\).

Ответ: 1 3/4; 7/9; 1/12; 2/9; 7/12; 4/9; 1/4; 5/9; 1 1/6; 71/120.