19 Oblicz 2 3 7 8 a) 6: b) 236 10 1 8:23 4 5 11

Odpowiedź:
[tex]a)\\6:\frac{2}{3}=6*\frac{3}{2} =3*3=9\\\\8:2\frac{2}{3} =8:\frac{8}{3} =8*\frac{3}{8} =3\\b)\\2\frac{1}{3} :\frac{7}{8} =\frac{7}{3} :\frac{7}{8}=\frac{7}{3} &*\frac{8}{7}=\frac{1}{3} *8=\frac{8}{3} =2\frac{2}{3} \\1\frac{1}{8} :1\frac{4}{5} =\frac{9}{8}:\frac{9}{5} = \frac{9}{8}:\frac{5}{9}=\frac{1}{8} *5=\frac{5}{8}[/tex]