1.
[tex] \frac{4}{5} = \frac{4 \times 2}{5 \times 2} = \frac{8}{10} [/tex]
[tex] \frac{3}{10} = \frac{3 \times 2}{10 \times 2} = \frac{6}{20} [/tex]
[tex] \frac{3}{2} = \frac{3 \times 2}{2 \times 2} = \frac{6}{4} [/tex]
2.
[tex] \frac{8}{12} = \frac{8 \div 4}{12 \div 4} = \frac{2}{3} [/tex]
[tex] \frac{4}{20} = \frac{4 \div 4}{20 \div 4} = \frac{1}{5} [/tex]
[tex] \frac{16}{60} = \frac{16 \div 4}{60 \div 4} = \frac{4}{15} [/tex]
[tex] \frac{36}{80} = \frac{36 \div 4}{80 \div 4} = \frac{9}{20} [/tex]
[tex] \frac{28}{32} = \frac{28 \div 4}{32 \div 4} = \frac{7}{8} [/tex]
[tex] \frac{8}{24} = \frac{8 \div 4}{24 \div 4} = \frac{2}{6} [/tex]
Myślę że pomogłem ;)
