Then, the storybook is 2|3×4|5=8| 15x.

Then comics are 8| 15x÷x=8| 15 of the story book.

A: Comics are 8| 15 of storybooks.

Is your question wrong? How many parts of a story book are comic books? Instead of "how many parts of a comic book are science books?" Right? Isn't this topic already mentioned?

That should be it. I hope my answer can bring you some help. I wish you progress in your study! !