Question

Помогите ОЧЕНЬ срочно​

Answer 1

Ответ:

$\frac{9 \times 29 + 9 \times 5}{34 \times 13 + 34 \times 23} = \frac{9(29 + 5)}{34(13 + 23)} = \\ = \frac{9 \times 34}{34 \times 36} = \frac{9}{36} = \frac{1}{4}$

.....

$\frac{21 \times 27 + 9 \times 27}{15 \times 13 + 15 \times 21} = \frac{27(21 + 9)}{15(13 + 21)} = \\ = \frac{27 \times 30}{15 \times 34} = \frac{27}{17} = 1 \frac{10}{17}$