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E 177. Trasforma ciascuna delle seguenti uguaglianze in proporzione. \( \begin{array}{ll}\text { a. } 9 \cdot 4=3 \cdot 12 & \frac{1}{3} \cdot \frac{7}{6}=\frac{5}{2} \cdot \frac{7}{45} \\ \text { b. } \frac{1}{4} \cdot 0, \overline{1}=0,1 \overline{6} \cdot 0,1 \overline{6} & 0, \overline{3} \cdot 1, \overline{6}=0,8 \overline{3} \cdot 0, \overline{6}\end{array} \)

Ask by Williams Todd. in Italy
Jan 30,2025

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Ecco le proporzioni trasformate dalle uguaglianze fornite: **a.** \[ 9 : 3 = 12 : 4 \] \[ \frac{1}{3} : \frac{5}{2} = \frac{7}{45} : \frac{7}{6} \] **b.** \[ \frac{1}{4} : \frac{1}{6} = \frac{1}{6} : \frac{1}{9} \] \[ \frac{1}{3} : \frac{5}{6} = \frac{2}{3} : \frac{5}{3} \] Queste proporzioni mostrano come le uguaglianze originali possono essere rappresentate come relazioni di proporzione tra i numeri.

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Per trasformare le uguaglianze in proporzioni, dobbiamo riformularle in termini di frazioni: a. L’uguaglianza \(9 \cdot 4 = 3 \cdot 12\) diventa la proporzione \(\frac{9}{3} = \frac{12}{4}\). Per l'altra uguaglianza, \(\frac{1}{3} \cdot \frac{7}{6} = \frac{5}{2} \cdot \frac{7}{45}\), possiamo trasformarla in una proporzione: \(\frac{\frac{1}{3}}{\frac{5}{2}} = \frac{\frac{7}{45}}{\frac{7}{6}}\). b. L'uguaglianza \(\frac{1}{4} \cdot 0,\overline{1} = 0,1\overline{6} \cdot 0,1\overline{6}\) diventa \(\frac{\frac{1}{4}}{0,1\overline{6}} = \frac{0,1\overline{6}}{0,1\overline{6}}\). Per l'uguaglianza \(0,\overline{3} \cdot 1,\overline{6} = 0,8\overline{3} \cdot 0,\overline{6}\), possiamo esprimere: \(\frac{0,\overline{3}}{0,8\overline{3}} = \frac{0,\overline{6}}{1,\overline{6}}\).

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