Question

8/27x9/7: 4/7 11/12: 7/24: 2 2/21 2 2/3: 24/35: 13 1/2x1 1/2: 2 1/4 15/16: 5/8x1 1/9 `13/14: 1 4/21 13/5 4 9/38x 5/2: 7/19 2 16/19x2 1/9: 3 3/8

Answer 1

8\27*9\7*7\4=2\3

11\12*24\7*21\44=6\4=3\2=1 1\2

15\16*8\5*10\9=5\3=1 2\3

Пошаговое объяснение:

Answer 2

Где смешанные дроби - превращаем их в неправильные, при делении вторая дробь переворачивается:

1) $\frac{8}{27} * \frac{9}{7} : \frac{4}{7} =$$\frac{32}{147}$

1. $\frac{8}{27} * \frac{9}{7} = \frac{8}{21}$

2. $\frac{8}{21} : \frac{7}{4} = \frac{8}{21} * \frac{4}{7} = \frac{32}{147}$

2) $\frac{11}{12} : \frac{7}{24} : \frac{44}{21}$ = 1,5

1. $\frac{11}{12} * \frac{24}{7} = \frac{22}{7}$

2. $\frac{22}{7} * \frac{21}{44} = \frac{3}{2} = 1,5$

3) $\frac{8}{3} : \frac{24}{35} : \frac{27}{2} * \frac{3}{2} : \frac{9}{4}$ = $\frac{280}{1458}$

1. $\frac{8}{3} * \frac{35}{24} = \frac{35}{9}$

2. $\frac{35}{9} * \frac{2}{27} = \frac{70}{243}$

3. $\frac{70}{243} * \frac{3}{2} = \frac{70}{162}$

4. $\frac{70}{162} * \frac{4}{9} = \frac{280}{1458}$

4) $\frac{15}{16} : \frac{5}{8} * \frac{10}{9} = 1,6$

1. $\frac{15}{16} * \frac{8}{5} = \frac{3}{2}$

2. $\frac{3}{2} * \frac{10}{9} = \frac{5}{3} = 1,6$

5) $\frac{13}{14} : \frac{25}{21} : \frac{13}{5} = 0,3$

1. $\frac{13}{14} * \frac{21}{25} = \frac{39}{50}$

2. $\frac{39}{50} : \frac{5}{13} = \frac{3}{10} = 0,3$

6) $\frac{161}{38} * \frac{5}{2} : \frac{7}{19} = 28,75$

1. $\frac{161}{38} * \frac{5}{2} = \frac{805}{76}$

2. $\frac{805}{76} * \frac{19}{7} = \frac{115}{4} = 28,75$

7) $\frac{54}{19} * \frac{19}{9} : \frac{27}{8} = 1,7$

1. $\frac{54}{19} * \frac{19}{9} = \frac{6}{1}$

2. $\frac{6}{1} * \frac{8}{27} = \frac{16}{9} = 1,7$