Odpowiedź:
zad7
a)[tex]\frac{1}{3} :\frac{1}{2} =\frac{1}{3} *\frac{2}{1} =\frac{2}{3}[/tex]
b)[tex]\frac{1}{5}:\frac{1}{4} =\frac{1}{5} *\frac{4}{1} =\frac{4}{5}[/tex]
c)[tex]\frac{4}{9} :\frac{1}{2} =\frac{4}{9} *\frac{2}{1} =\frac{8}{9}[/tex]
d)[tex]\frac{1}{13} :\frac{2}{3} =\frac{1}{13} *\frac{3}{2} =\frac{3}{26}[/tex]
e)[tex]\frac{2}{5}:\frac{3}{4} =\frac{2}{5}*\frac{4}{3} =\frac{8}{15}[/tex]
f)[tex]\frac{3}{7} :\frac{7}{8}= \frac{3}{7}*\frac{8}{7}= \frac{24}{49}[/tex]
g)[tex]\frac{4}{9}: \frac{5}{7} =\frac{4}{9} *\frac{7}{5}= \frac{28}{45}[/tex]
h)[tex]\frac{6}{11}: \frac{11}{7}= \frac{6}{11}* \frac{7}{11}= \frac{42}{121}[/tex]
zad8
a)[tex]\frac{2}{9}: \frac{7}{3}= \frac{2}{9} *\frac{3}{7} =\frac{6}{63} =\frac{2}{21}[/tex]
b)[tex]\frac{1}{9}: \frac{5}{12}= \frac{1}{9}* \frac{12}{5} =\frac{12}{45}=\frac{4}{15}[/tex]
c)[tex]\frac{3}{8} :\frac{5}{12}= \frac{3}{8}* \frac{12}{5} =\frac{36}{40}= \frac{9}{10}[/tex]
d)[tex]\frac{8}{15}: \frac{3}{20}= \frac{8}{15}* \frac{20}{3}= \frac{160}{45}= \frac{32}{9} =3\frac{5}{9}[/tex]
Szczegółowe wyjaśnienie:
