Question

450. Запомните таблицу:
40 бал​

Answer 1

Таблица заполненна на прикладываемой картинке

Answer 2

Ответ:

1) $\frac{7}{9}$ * $\frac{3}{7}$ = $\frac{3}{9}$ = $\frac{1}{3}$

2) $\frac{7}{9}$ : $\frac{3}{7}$  = $\frac{7}{9}$ * $\frac{7}{3}$ = $\frac{49}{27}$ = 1 $\frac{22}{27}$

3) 1 $\frac{3}{5}$ : 2 $\frac{1}{2}$ = $\frac{8}{5}$ * $\frac{2}{5}$ = $\frac{16}{25}$ = 0,64

4) 1 $\frac{3}{5}$ * $\frac{16}{25}$ = $\frac{8}{5}$ * $\frac{16}{25}$ = $\frac{128}{125}$ = 1 $\frac{3}{125}$ = 1,024

5) 1 : $\frac{5}{14}$ = $\frac{14}{14}$ * $\frac{14}{5}$ = $\frac{196}{70}$ = 2 $\frac{56}{70}$ = 2 $\frac{28}{35}$ = 2,8

6) 2 $\frac{4}{5}$ : $\frac{5}{14}$ = $\frac{14}{5}$ * $\frac{14}{5}$ = $\frac{196}{25}$ = 7 $\frac{21}{25}$ = 7,84

7) 10 : 5 = 2

8) 5 : 2 = $\frac{5}{2}$ = 2 $\frac{1}{2}$ = 2,5

9) 1 $\frac{24}{25}$ * 1 $\frac{2}{3}$ = $\frac{49}{25}$ * $\frac{5}{3}$ = $\frac{49}{15}$ = 3 $\frac{4}{15}$

10) 1 $\frac{24}{25}$ : 1 $\frac{2}{3}$ = $\frac{49}{25}$ * $\frac{3}{5}$ = $\frac{147}{125}$ = 1 $\frac{22}{125}$ = 1,176

11) 1 : 8 $\frac{1}{3}$ = $\frac{3}{3}$ * $\frac{3}{25}$ = $\frac{3}{25}$ = 0,12

12) 8 $\frac{1}{3}$ : $\frac{3}{25}$ = $\frac{25}{3}$ * $\frac{25}{3}$ = $\frac{625}{3}$ = 208 $\frac{1}{3}$

13) 3 $\frac{1}{3}$ : $\frac{7}{10}$ = $\frac{10}{3}$ * $\frac{10}{7}$ = $\frac{100}{21}$ = 4 $\frac{16}{21}$

14) $\frac{7}{10}$ : $\frac{100}{21}$ = $\frac{7}{10}$ * $\frac{21}{100}$ = $\frac{147}{1000}$ = 0,147

15) 8 * 5 $\frac{1}{3}$ = $\frac{8}{1}$ * $\frac{16}{3}$ = $\frac{128}{3}$ = 42 $\frac{2}{3}$

16) 42 $\frac{2}{3}$ * 5 $\frac{1}{3}$ = $\frac{128}{3}$ * $\frac{16}{3}$ = $\frac{2048}{9}$ = 227 $\frac{5}{9}$