1) Since we can rewrite 12.1 as a fraction, let's do it placing on the numerator 121 and the on the denominator 10, like this:
[tex]12.1=\frac{121}{10}[/tex]2) But we can also write it as a mixed number, since 12.1 is greater than 1
[tex]12.1=\frac{121}{10}\text{ =12}\frac{1}{10}[/tex]Simply write the part to the right of the dot as, a fraction. In this case, 0.1 = 1/10
