Answer:
[tex]\huge\underline\mathtt\colorbox{cyan}{1/2}[/tex]
Step-by-step explanation:
[tex]12 \: can \: be \: written \: as \: \: \frac{24}{2} \\ \\ therefore \: to \: make \: it \: \frac{25}{2} \: \: we \: will \: need \: \frac{1}{2} \\ \\ \\ \frac{24}{2} + \frac{1}{2} = \frac{25}{2} [/tex]
