Question

Пожалуйста помогите с примерами! Тема: Дроби (36 баллов)

Answer 1

Ответ:

$\frac{2}{1} + \frac{1}{3} = \frac{6}{3} + \frac{1}{3} = \frac{7}{3}$

$\frac{3}{5} + \frac{1}{15} = \frac{9}{15} + \frac{1}{15} = \frac{10}{15} = \frac{2}{3}$

$\frac{9}{10} + \frac{5}{2} = \frac{9}{10} + \frac{25}{10} = \frac{34}{10} = 3 \frac{4}{10} = 3 \frac{2}{5}$

$\frac{12}{7} + \frac{11}{3} = \frac{36}{21} + \frac{77}{21} = \frac{113}{77} = 5 \frac{8}{21}$

$\frac{3 \times 5}{4 \times 7} = \frac{15}{28}$

$\frac{8 \times 12}{9 \times 7} = \frac{96}{63}$

$\frac{15 \times 34}{17 \times 50} = \frac{3 \times 2}{1 \times 10} = \frac{6}{10}$

$\frac{10}{11} - \frac{3}{7} = \frac{70}{77} - \frac{33}{77} = \frac{37}{77}$

$\frac{1}{5} - \frac{8}{55} = \frac{11}{55} - \frac{8}{55} = \frac{3}{55}$

$\frac{12}{7} - \frac{3}{2} = \frac{24}{14} - \frac{21}{14} = \frac{3}{14}$

$\frac{2}{5} + \frac{1}{6} = \frac{12}{30} + \frac{5}{30} = \frac{17}{30}$

$\frac{2}{9} + \frac{3}{4} = \frac{35}{36}$