Mina spent 4 hours visiting her friend. They spent 2/3 of their time together riding bikes. How many hours did Mina and her friend spend riding bikes? (sorry if it doesn't make sense)
2 hours and 30 minutes because if you divide the four hours by three you get 1 hour and 20 minutes you add 1 hour and 20 minutes by itself and you get your answer :)
