[tex]\displaystyle\bf\\\textbf{Un numar este divizibil cu 5 daca ultima cifra a lui este 0 sau 5.}\\\\\\\frac{~~\overline{43ab}~~}{\overline{67xy}}~~~\text{Trebuie sa se simplifice cu 5.}\\\\a\in\{0;~1;~2;~3;~4;~5;~6;~7;~8;~9\}\\b\in\{0;~5\}\\x\in\{0;~1;~2;~3;~4;~5;~6;~7;~8;~9\}\\y\in\{0;~5\}\\Numarul~de~combinatii~este:\\n=10\times2\times10\times2=400~de~combinatii=\boxed{\bf400~de~fractii}[/tex]
