ГДЗ Математика 6 клас Істер — Вправа 1482

$(9\frac{5}{9} - 11) \cdot \frac{9}{26} - 16 : (2\frac{1}{2} - 4\frac{5}{6}) = 6\frac{5}{14}$

1) $9\frac{5}{9} - 11 = -(10\frac{9}{9} - 9\frac{5}{9}) = -1\frac{4}{9} = -\frac{13}{9};$

2) $-\frac{13}{9} \cdot \frac{9}{26} = -\frac{1 \cdot 1}{1 \cdot 2} = -0,5;$

3) $2\frac{1}{2} - 4\frac{5}{6} = 2\frac{3}{6} - 4\frac{5}{6} = -(4\frac{5}{6} - 2\frac{3}{6}) =$

$= -2\frac{2}{6} = -2\frac{1}{3} = -\frac{7}{3};$

4) $16 : (-\frac{7}{3}) = 16 \cdot (-\frac{3}{7}) = -\frac{48}{7};$

5) $-0,5 - (-\frac{48}{7}) = -\frac{1}{2} + 6\frac{6}{7} = 6\frac{12}{14} - \frac{7}{14} = 6\frac{5}{14}.$