Sophia

Problem:



Solution;

To find the answer, simply convert all of them to decimal.

Apple is $ 0.45 $ pound.
Grapefruit is $ \frac{3}{4} = 0.75 $ pound.
Navel orange is $ \frac{5}{8} = 0.625 $ pound.
Pear is 0.5 pound.

Therefore the order is Apple < Pear < Navel Orange < Grapefruit