Zadanie 71.
a) [tex]\frac{1}{3} *\frac{1}{4} =\frac{1}{12}[/tex]
b) [tex]\frac{3}{8} *\frac{4}{7} =\frac{3}{14}[/tex]
c) [tex]\frac{2}{5} *\frac{4}{6} =\frac{4}{15}[/tex]
d) [tex]\frac{2}{9} *\frac{9}{22} =\frac{1}{11}[/tex]
e) [tex]2\frac{3}{5} *\frac{10}{13} =\frac{13}{5} *\frac{10}{13}=2[/tex]
f) [tex]\frac{3}{10} *3\frac{1}{8}=\frac{3}{10} *\frac{25}{8} =\frac{15}{16}[/tex]
g) [tex]4\frac{1}{2} *1\frac{1}{3} =\frac{9}{2} *\frac{4}{3} =6[/tex]
h) [tex]2\frac{1}{7} *2\frac{1}{3}=\frac{15}{7} *\frac{7}{3} =5[/tex]
i) [tex]2\frac{2}{5} *1\frac{1}{4} =\frac{12}{5} *\frac{5}{4} =3[/tex]
j) [tex]\frac{3}{4} *\frac{2}{7} *\frac{7}{11} =\frac{3}{4}*\frac{2}{11} =\frac{3}{22}[/tex]
k) [tex]\frac{5}{9} *\frac{3}{5}*\frac{4}{13}=\frac{1}{3} *\frac{4}{13}=\frac{4}{39}[/tex]
l) [tex]1\frac{1}{2} *2\frac{2}{3} *1\frac{3}{4} =\frac{3}{2} *\frac{8}{3} *\frac{7}{4} =4*\frac{7}{4} =7[/tex]
