Chapter 2.3, Problem 1P

Use a math drawing to explain in your own words why multiplying the numerator and denominator of a fraction by the same number results in the same number (equivalent fraction). Give a general explanation, but illustrate with

   $\frac{3}{4}=\frac{3\times 3}{4\times 3}$

Students may find it confusing that we multiply the number yet we divide the parts in the math drawing. Attend carefully to this point and to the number and size of the parts.