Odpowiedź :
Cześć!
1)
[tex]\dfrac{70}{300}=\dfrac{70:10}{300:10}=\boxed{\frac{7}{30}}[/tex]
2)
[tex]\dfrac{130}{400}=\dfrac{130:10}{400:10}=\boxed{\frac{13}{40}}[/tex]
3)
[tex]\dfrac{20}{6400}=\dfrac{20:10}{6400:10}=\dfrac{2}{640}=\dfrac{2:2}{640:2}=\boxed{\frac{1}{320}}\\[/tex]
4)
[tex]\dfrac{120000}{3500}=\dfrac{120000:100}{3500:100}=\dfrac{1200}{35}=\dfrac{1200:5}{35:5}=\boxed{\frac{240}{7}}\\[/tex]
Odpowiedź:
[tex]a) \frac{70}{300} = \frac{7}{30} \\\\b) \frac{130}{400} =\frac{13}{40} \\\\c) \frac{20}{6400}=\frac{1}{320} \\\\d) \frac{120000}{3500} =\frac{240}{7} (=34\frac{2}{7})[/tex]
Szczegółowe wyjaśnienie: