ГДЗ Математика 6 клас Істер — Вправа 443

1) $3\frac{5}{9} : 2\frac{2}{3} = \frac{32}{9} \cdot \frac{3}{8} = \frac{4}{3} = 1\frac{1}{3};$

2) $3\frac{1}{3} : 2\frac{6}{7} = \frac{10}{3} \cdot \frac{7}{20} = \frac{7}{6} = 1\frac{1}{6};$

3) $7\frac{6}{7} : 9\frac{3}{7} = \frac{55}{7} \cdot \frac{7}{66} = \frac{5}{6};$

4) $9\frac{5}{7} : 1\frac{23}{28} = \frac{68}{7} \cdot \frac{28}{51} = \frac{4 \cdot 4}{1 \cdot 3} = \frac{16}{3} = 5\frac{1}{3}.$