Multiplying a Whole by a Fraction

The video tutorial explains how whole numbers can be expressed as fractions by placing them over 1. It introduces a problem involving Mrs. Williams' class, where 3/4 of the students are right-handed. The tutorial demonstrates how to calculate a fraction of a whole number by multiplying fractions, using the example of finding 3/4 of 20. The process involves expressing 20 as a fraction, multiplying numerators and denominators, and interpreting the result as division to find the number of right-handed students. The lesson concludes with a recap of the multiplication process to find fractions of whole numbers.

What is the relationship between the whole number 20 and the fraction 20 over 1?

How can any whole number be expressed as a fraction?

If Mrs. Williams has 20 students and 3/4 of them are right-handed, how do you calculate the number of right-handed students?

What operation do you perform to find 3/4 of a number?

What is the final answer when calculating 3/4 of 20?