Frank purchases 18 gallons of gas on monday he uses 1/3 of the amount commuting to and from work he uses an additional 4 gallons running errands how many gallons of gas does frank use for work and errands

To answer this question you will multiply 18 and 1/3 to get 6, So he uses 6 of the 18 gallons to commute to and from work. Then you will add 4 (to run his errands) and 6 to get 10. So Frank uses 10 gallons of gas to run his errands and travel to and back from work