The video tutorial explains how to find the volume of a rectangular prism and a cube with fractional edge lengths by packing them with unit cubes of appropriate fractional edge lengths. It begins with a review of key concepts such as volume and fractions. The tutorial then demonstrates how to calculate the volume of a cube by cubing its side length and using unit cubes. An example of a rectangular prism is provided, showing how to determine its volume using unit cubes and verifying the result with traditional multiplication of dimensions. The video concludes by summarizing the methods used.

What is the formula to find the volume of a rectangular prism?

Explain how to add fractions with a common denominator.

What is the volume of a unit cube with dimensions one-fourth inch by one-fourth inch by one-fourth inch?

How do you find the volume of a cube with a side length of three-fourths of an inch?

Describe the process of finding the volume of a rectangular prism using unit cubes.