Is 3 gallons greater, less, or equal to 30 quarts

There are 4 quarts in one gallon. If you convert the quarts to gallons, you will divide 30 by 4. 30 quarts is equal to 7.5 gallons. So 30 quarts is more than 3 gallons. 

Your answers will look like this:
3 gallons < 30 quarts

3 gallons is less because there are 12 quarts