Oscar is 16 years old and his sister julia is 12 years old. what will be the ratio of oscar's age to julia's age in 2 years. write as a fraction in simplest form

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?