36. Найдите значение выражения: 7/48 + 7/36; 7/18 − 7/24; 11/36 − 7/24; 5/6 − 1/15; 5/9 − 5/12; 7/10 + 2/5; 3/10 + 4/15; 1/2 + 3/4; 1/3 + 2/9; 1/3 − 1/7.

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

1. \(\frac{7}{48}+\frac{7}{36}=\frac{21}{144}+\frac{28}{144}=\frac{49}{144}\).
2. \(\frac{7}{18}-\frac{7}{24}=\frac{28}{72}-\frac{21}{72}=\frac{7}{72}\).
3. \(\frac{11}{36}-\frac{7}{24}=\frac{22}{72}-\frac{21}{72}=\frac{1}{72}\).
4. \(\frac{5}{6}-\frac{1}{15}=\frac{25}{30}-\frac{2}{30}=\frac{23}{30}\).
5. \(\frac{5}{9}-\frac{5}{12}=\frac{20}{36}-\frac{15}{36}=\frac{5}{36}\).
6. \(\frac{7}{10}+\frac{2}{5}=\frac{7}{10}+\frac{4}{10}=\frac{11}{10}\).
7. \(\frac{3}{10}+\frac{4}{15}=\frac{9}{30}+\frac{8}{30}=\frac{17}{30}\).
8. \(\frac{1}{2}+\frac{3}{4}=\frac{2}{4}+\frac{3}{4}=\frac{5}{4}\).
9. \(\frac{1}{3}+\frac{2}{9}=\frac{3}{9}+\frac{2}{9}=\frac{5}{9}\).
10. \(\frac{1}{3}-\frac{1}{7}=\frac{7}{21}-\frac{3}{21}=\frac{4}{21}\).