6supra 25 inpartit la 27 supra 15
dau coroana

Răspuns:
[tex] \frac{6}{25} \div \frac{27}{15} = \\ \frac{6}{25} \times \frac{15}{27 } = \\ \frac{3 \times 2}{5 \times 9} = \\ \frac{6}{5 \times 9} = \frac{2}{15} [/tex]