Final answer:
To find out how much ice cream is left after Mary ate, we subtracted the amount she ate from the initial amount Kareem had. Kareem had 4/5 gallons and Mary ate 1/4 of a gallon. Converting the fractions to have a common denominator, we get 11/20 gallons left.
Step-by-step explanation:
To find out how much ice cream is left, we need to subtract the amount Mary ate from the initial amount Kareem had. Kareem had 4/5 gallons of ice cream and Mary ate 1/4 of a gallon.
First, we need to find a common denominator for 5 and 4. The least common multiple of 5 and 4 is 20.
Converting 4/5 to a fraction with a denominator of 20, we get 16/20. Subtracting 1/4 (which is equivalent to 5/20) from 16/20 gives us 11/20.
Therefore, Kareem has 11/20 gallons of ice cream left after Mary ate.