Jenny has to mow (69/7 * 14/5) + (21/4 * 11)
Sammy has to mow (32/3 * 30/7)
Calculate the total areas that they have to mow and compare
Jenny:
(69/7 * 14/5) + (21/4 * 11)
138/5 + 231/4
85 7/20
Sammy:
(32/3 * 30/7)
45 5/7
Jenny has to do almost twice as much mowing than Sammy. Which means Sammy definitely doesn't have more area to mow than Jenny.
Hope this helps