What is the smallest cube that could fit in this box based on the length? (What is the fraction portion of the number?)

The length of the box is needed to calculate the size of the smallest cube that could fit inside. Please provide the length of the box.

I need a number answer >>>

Without knowing the exact length of the box, it is not possible to provide a specific number answer for the smallest cube that could fit inside. If you can provide the length of the box, I can calculate the size of the smallest cube based on that information.

a small sqare

If the box is a perfect cube, meaning all sides are equal in length, then the smallest cube that could fit inside would be a fraction of approximately 0.7071 of the length of the side of the box.