\[\boxed{\text{158.}}\]
\[1 = \frac{4}{4};\ \ \ \frac{5}{4};\ \ \frac{5}{3}.\]
\[\boxed{\text{159.}}\]
\[1 = \frac{2}{2}\]
\[4 = \frac{12}{3}\]
\[7 = \frac{28}{4}\]
\[5 = \frac{30}{6}\]
\[10 = \frac{80}{8}\]
\[6 = \frac{42}{7}\]
\[\boxed{\text{160.}}\]
\[\frac{2}{2} = 1\]
\[\frac{6}{3} = 2\]
\[\frac{8}{2} = 4\]
\[\frac{14}{7} = 2\]
\[\frac{63}{9} = 7\]
\[\frac{48}{8} = 6\]
\[\boxed{\text{161.}}\]
\[Разрезали\ 3\ апельсина,\ \]
\[каждый\ на\ 4\ равные\ доли.\]
\[\frac{9}{4} = 2\frac{1}{4}\text{.\ }\]