Question

Помогите пожалуйста решить 2)4)6)8)

Answer 1

Ответ:

2)

$\frac{11}{12} \div \frac{7}{24} \div 2 \frac{2}{21} = \frac{11}{1 {2}^{1} } \times \frac{2 {4}^{2} }{7} = \frac{22}{7} \div \frac{44}{21} = \frac{2 {2}^{1} }{ {7}^{1} } \times \frac{2 {1}^{3} }{4 {4}^{2} } = \frac{3}{2}$

4)

$13 \frac{1}{2} \times 1 \frac{1}{2} \div 2 \frac{1}{4} = 14 \frac{1}{2} \div 2 \frac{1}{4} = 6 \frac{4}{9} = \frac{58}{9}$

6)

$\frac{13}{14} \div 1 \frac{4}{21} \div \frac{13}{5} = \frac{13}{1 {4}^{2} } \times \frac{2 {1}^{3} }{25} = \frac{39}{50} \div \frac{13}{5} = \frac{3 {9}^{3} }{5 {0}^{10} } \times \frac{ {5}^{1} }{1 {3}^{1} } = \frac{3}{10}$

8)

$2 \frac{16}{19} \times 2 \frac{1}{9} \div 3 \frac{3}{8} = \frac{54}{19} \times \frac{19}{9} \times \frac{8}{27} = 54 \times \frac{1}{9} \times \frac{8}{27} = 6 \times \frac{8}{27} = 2 \times \frac{8}{9} = \frac{16}{9}$

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