Предмет: Математика, автор: 89610387772sb

найдите дробь от числа : А) 0,6 от 12 Б) 7/9 от 1 1/21 В) 75% от 4

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Автор ответа: gulerismaylova

а)

$0. 6\times 12 = \\ \frac{3}{5} \times 12 = \frac{36}{5} = 7 \frac{1}{5} = 7.2$

б)

$\frac{7}{9} \times \frac{11}{21} = \frac{11}{27}$

в)

$75\% \times 4 = \\ \frac{3}{4} \times 4 = 3$

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найдите дробь от числа : А) 0,6 от 12 Б) 7/9 от 1 1/21 В) 75% от 4​

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найдите дробь от числа : А) 0,6 от 12 Б) 7/9 от 1 1/21 В) 75% от 4