Question

Номер 597,598 помогите пожалуйста

Answer 1

номер 597

а

$12 \times \frac{1}{6} = 2 \\ 2 \times 1 \frac{1}{2} = 2 \times \frac{2}{3} = \frac{4}{3} = 1 \frac{1}{3} \\ \frac{4}{3} \times 3 \frac{3}{4} = \frac{4}{3} \times \frac{15}{4} = 5 \\ 5 \times 4 \frac{1}{5} = 5 \times \frac{21}{5} = 21$

б

$3 \times 5 \frac{1}{4} = 3 \times \frac{21}{4} = \frac{63}{4} = 15 \frac{3}{4} \\\frac{63}{4} \times1 \frac{1}{7} = \frac{63}{4} \times \frac{8}{7} = 18 \\ 18 \times 5 \frac{1}{2} = 18 \times \frac{11}{2} = 99 \\ 99 \times \times \frac{4}{11} = 36$

номер 598

а

$( \frac{2}{9} ) {}^{2} = ( \frac{2 {}^{2} }{9 {}^{2} } ) = \frac{4}{81}$

б

$( \frac{2}{3} ) {}^{3} = \frac{2 {}^{3} }{ {3}^{3} } = \frac{8}{27}$

в

$( \frac{1}{4}) {}^{3} = ( \frac{ {1}^{3} }{ {4}^{3} } ) = \frac{1}{64}$

г

$( \frac{4}{3} ) {}^{3} = \frac{4 {}^{3} }{3 {}^{3} } = \frac{64}{27} = 2 \frac{10}{27}$

д

$( \frac{1}{5} ) {}^{3} = ( \frac{ {1}^{3} }{ {5}^{3} } ) = \frac{1}{125}$

е

$( \frac{1}{3} ) {}^{2} = ( \frac{ {1}^{2} }{ {3}^{2} } ) = \frac{1}{9}$