Question

luis is traing for s marthon. he run6 1/2 miles every 2/3 hour. hoe far does he run in 2 hour

Answer 1

You need to multiply 2/3 with 3 to get two hours, that means you have to do the same with the number of miles ;)

Answer 2

6 1/2 x 3

Answer 3

If you divide the number of miles by the time it takes, you find his speed in miles per hour.
Then since you need to know how far he runs in 2 hours, multiply the speed by the time.