First you have to make them to a common denominator.
5/6 7/12 7/10
50/60 35/60 42/60
from these the greatest value is 35/60 because 35 parts of 60 is bigger than the rest.
so the answer is 7/12
The puppy has greater mass: 450,000 milligrams = 450 grams, and 450<4,500
The tax on a 48 dollar item would be $4.08