Odpowiedź:
1 a)
[tex] \frac{12}{20} = \frac{12}{20} \div \frac{4}{4} = \frac{3}{5} [/tex]
b)
[tex] \frac{2}{7} = \frac{2}{7} \times \frac{3}{3} = \frac{6}{21} [/tex]
[tex] \frac{3}{15} = \frac{3}{15} \div \frac{3}{3} = \frac{1}{5} [/tex]
2
ośmiokąt
[tex] \frac{6}{8} \\ \frac{3}{4} \\ \frac{6}{8} = \frac{3}{4} [/tex]
koło \/
[tex] \frac{1}{5} \\ \frac{2}{10} \\ \frac{1}{5} = \frac{2}{10} [/tex]
kwadrat
[tex] \frac{4}{8} \\ \frac{1}{2} \\ \frac{4}{8} = \frac{1}{2} [/tex]
3
[tex] \frac{15}{45} = \frac{15}{45} \div \frac{5}{5} = \frac{3}{9} [/tex]
[tex] \frac{10}{35} = \frac{10}{35} \div \frac{5}{5} = \frac{2}{7} [/tex]
[tex] \frac{100}{500} = \frac{100}{500} \div \frac{5}{5} = \frac{20}{100} [/tex]
[tex] \frac{25}{50} = \frac{25}{50} \div \frac{5}{5} = \frac{5}{10} [/tex]
[tex] \frac{35}{40} = \frac{35}{40} \div \frac{5}{5} = \frac{7}{8} [/tex]
