Question

Rotunjiți la prima zecimală rezultatul calculului 5,(3): {2,4 · [1 – 0,1(6)]}

VA ROG AJUTAȚI MA DAU COROANA?!!! ​

Answer 1

Răspuns:

$5.(3) = \frac{53 - 5}{9} = \frac{48}{9} = \frac{16}{3} \\ 0.1(6) = \frac{16 - 1}{90} = \frac{15}{90} = \frac{1}{6}$

$\frac{16}{3} \div ((2.4 \times (1 - \frac{1}{6} )) \\ \frac{16}{3} \div (2.4 \times \frac{6 - 1}{6} ) = \\ \frac{16}{3} \div (2.4 \times \frac{5}{6} ) \\ \frac{16}{3} \div \frac{12}{6} = \\ \frac{16}{3} \times \frac{6}{12} = \frac{16}{3} \times \frac{1}{2} = \frac{16}{6}$