Answer:
You compared the Jeanne to Jake in the correct order 21/28. Now you need to simplify your fraction. What is the largest number, also known as the the highest common denominator, you can divide both 21 and 28 by? Once you figure that out, divide both 21 and 28 by that highest common denominator and you will have your answer.
Explanation:
21/1=21 28/1=8
21/3=7 28/2=14
21/7=3 28/4=7
28/7=4
What is the largest common number in both columns? That is your largest common denominator.