[tex]0,125= \frac{125}{100}= \frac{5}{4} \\ \\
0,98(6)= \frac{986-98}{900}= \frac{888}{900}= \frac{222}{225} \\ \\
6,8= \frac{68}{10}= \frac{34}{5} \\ \\
3,(72)= \frac{372-3}{99}= \frac{369}{99}= \frac{41}{11} \\ \\
2,8(604)= \frac{28604-28}{9990}= \frac{28576}{9990} [/tex]