Odpowiedź:
Zadanie 1
[tex]a)\frac{7}{9} *\frac{5}{6} =\frac{7*5}{9*6} =\frac{35}{54}[/tex]
[tex]b)\frac{8}{15} *\frac{5}{36} =\frac{2}{3} *\frac{1}{9} =\frac{2}{27}[/tex]
[tex]c)2\frac{1}{2} *3\frac{1}{3} = \frac{5}{2} *\frac{10}{3} =5*\frac{5}{3} =\frac{25}{3}=4\frac{3}{5}[/tex]
[tex]d)\frac{3}{10} *55=\frac{3}{2} *11=\frac{33}{2}=16\frac{1}{2}[/tex]
[tex]e)27*1\frac{1}{9} =27*\frac{10}{9} =3*10=30[/tex]
Zadanie 2
[tex]\frac{7}{10} *12\frac{1}{2} =\frac{7}{10} *\frac{25}{2} =\frac{35}{4} = 8\frac{3}{4}[/tex]
Dziękuję i pozdrawiam.
