At most Nate can run 0.1 of a mile in a minute. If he is given 13.9 minutes to run as far as he can, how many miles dan Nate run in that time?

(Can you explain what to do)

(.1mi/1min)

1.39mi/13.9 min

You have to multiply the bottom and the top by the same number to get the answer, you're trying to make the denominator 13.9 for the amount do minutes so you multiply the numerator by 13.9 to get the numerator