Tony had 1 1/2 gallons of orange juice. He drank 2/7 of the orange juice he had. How mucj orange juice did Tony drink?

There are several information's of immense importance already given in the question.

Amount of juice that Tony actually had = 11/2 gallons

Amount of juice that Tony drank = (11/2) * (2/7) gallons

= 11/7 gallons

From the above deduction, we can easily conclude that the amount of juice that Tony drank was 11/7 gallons.