Сравните дроби:9/10 и 4/5,      5/12 и 7/10.

[latex]1) \frac{9}{10}; \frac{4}{5} \\ \\ \frac{9}{10} ; \frac{8}{10} \\ \\ 9\ \textgreater \ 8 \\ \\ \frac{9}{10}\ \textgreater \ \frac{4}{5} [/latex]   [latex]2) \frac{5}{12} ; \frac{7}{10} \\ \\ \frac{25}{60} ; \frac{42}{60} \\ \\ 25\ \textless \ 42 \\ \\ \frac{5}{12} \ \textless \ \frac{7}{10} [/latex]