Ответы на вопрос:
[tex]1
\frac{8}{25} \times 1 \frac{4}{11} = \frac{33}{25} \times \frac{15}{11} = \frac{9}{5} = 1 \frac{4}{5} = \\ = 1.8[/tex]
[tex]4 \frac{4}{9} \div 1 \frac{2}{3} = \frac{40}{9}
\times \frac{3}{5} = \frac{8}{3} = 2 \frac{2}{3} [/tex]
[tex]7 \frac{1}{3} \times ( \frac{9}{20} \div \frac{1}{30} ) = 7 \frac{1}{3}
\times \\ ( \frac{9}{20} \times \frac{30}{1} ) = 7 \frac{1}{3} \times \frac{27}{2} = [/tex]
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