Answer:
least is box #2, then box #1, then box #3
Step-by-step explanation:
Least: 3/4 x 4/9 = 3/9 → 9/27
7/7 x 4/9 = 1 x 4/9 = 4/9 → 12/27
5/3 x 4/9 = 20/27
Greatest: 2 x 4/9 = 8/9 → 24/27
when you have a common denominator, in this case it's 27, then compare numerators
