Question

Выполните действия:
8 94
11
7"
2)
12
-
9
смо
6t
6​

Answer 1

Переводим смешанные дроби в неправильные:

1) $\frac{8}{27} * \frac{9}{8} * \frac{7}{4} = \frac{7}{12}$

1. $\frac{8}{27} * \frac{9}{8} = \frac{1}{3}$

2. $\frac{1}{3} * \frac{7}{4} = \frac{7}{12}$

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

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

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

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3) $\frac{8}{3} * \frac{35}{24} * \frac{9}{25} = 1,4$

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

2. $\frac{35}{9} * \frac{9}{25} = \frac{7}{5} = 1\frac{2}{5} = 1,4$

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4) $\frac{27}{2} * \frac{3}{2} * \frac{4}{9} = 9$

1. $\frac{27}{2} * \frac{3}{2} = \frac{81}{4}$

2. $\frac{81}{4} * \frac{4}{9} = \frac{9}{1} = 9$

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5) $\frac{15}{16} * \frac{8}{5} * \frac{10}{9} = 1\frac{2}{3}$

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

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

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6) $\frac{13}{14} * \frac{21}{25} * \frac{5}{13} =$

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

2. $\frac{39}{50} * \frac{5}{13} = \frac{3}{10}$  

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7) $\frac{161}{38} * \frac{5}{23} * \frac{19}{7} = 2,5$

1. $\frac{161}{38} * \frac{5}{23} = \frac{35}{38}$

2. $\frac{35}{38} * \frac{19}{7} = \frac{5}{2} = 2,5$

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8) $\frac{54}{19} * \frac{19}{9} * \frac{8}{27} = 1,77$

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

2. $\frac{6}{1} * \frac{8}{27} = \frac{48}{27} = 1,77$