Ответ:\(6\cdot\frac{8}{25}=\frac{48}{25}=1\frac{23}{25}\).\(\frac{5}{8}\cdot4=\frac{20}{8}=\frac{5}{2}=2\frac{1}{2}\).\(\frac{9}{28}\cdot56=9\cdot2=18\).