3/5 or 60% of .25 is found by doing this.3/5 times x/.25.Cross multiply to get 5x = .75. Divide both sides by 5 to get .15. .25 - .15 is .10, or 1/10. The answer is 1/10 of a gallon.
1/2, because there are three even numbers and three odd numbers out of six, which would make the fraction 3/6, then simplify it to 1/2 (: hope it helped