15/20

It seems like you have written a fraction, which can also represent a percentage. To convert 15/20 to a percentage, you divide 15 by 20 and then multiply by 100.

\[ \frac{15}{20} = 0.75 \]

Now, multiply by 100 to get the percentage:

\[ 0.75 \times 100 = 75\% \]

So, 15/20 is equivalent to 75%. If you have a specific question or context in mind regarding this fraction, please provide more details!