Learn how to determine the product of two fractions with unlike denominators

The video tutorial explains how to multiply fractions by multiplying the numerators and denominators directly, without needing common denominators. It warns against confusing this process with cross multiplication, which is used for solving equations involving ratios. An example is provided, showing how to multiply and then simplify the resulting fraction by identifying common factors.

What common number can be used to reduce the fraction 21/48?

What is the final answer for the multiplication of 21/48 after reduction?