Obliczenia:
[tex]\frac{9}{13} * 12 = \frac{108}{13} = 8 \frac{4}{13}[/tex]
[tex]\frac{13}{12} * \frac{1}{6} = \frac{13}{72}[/tex]
[tex]\frac{8}{10}*15 =12[/tex]
[tex]\frac{5}{4}*12 = 15[/tex]
[tex]\frac{13}{11} *\frac{1}{8} = \frac{13}{88}[/tex]
[tex]\frac{2}{11}*18 = \frac{36}{11} = 3\frac{3}{11}[/tex]
[tex]\frac{13}{11} : 8 =\frac{13}{11} *\frac{1}{8} = \frac{13}{88}[/tex]
[tex]\frac{2}{11} :\frac{1}{18} = \frac{2}{11}*18 = \frac{36}{11} = 3\frac{3}{11}[/tex]
[tex]\frac{8}{10} : \frac{1}{15} = \frac{8}{10}*15 =12[/tex]
[tex]\frac{13}{12} : 6 = \frac{13}{12} * \frac{1}{6} = \frac{13}{72}[/tex]
[tex]\frac{9}{13} : \frac{1}{12} = \frac{9}{13} * 12 = \frac{108}{13} = 8 \frac{4}{13}[/tex]
[tex]\frac{5}{4} : \frac{1}{12} = \frac{5}{4}*12 = 15[/tex]
